diff --git a/Project.toml b/Project.toml
index 4af7ec67..613e770d 100644
--- a/Project.toml
+++ b/Project.toml
@@ -56,6 +56,7 @@ UnicodePlots = "2.4"
 julia = "1.5"
 
 [extras]
+Colors = "5ae59095-9a9b-59fe-a467-6f913c188581"
 Distributions = "31c24e10-a181-5473-b8eb-7969acd0382f"
 FileIO = "5789e2e9-d7fb-5bc7-8068-2c6fae9b9549"
 Gtk = "4c0ca9eb-093a-5379-98c5-f87ac0bbbf44"
@@ -76,4 +77,4 @@ UnicodePlots = "b8865327-cd53-5732-bb35-84acbb429228"
 VisualRegressionTests = "34922c18-7c2a-561c-bac1-01e79b2c4c92"
 
 [targets]
-test = ["Distributions", "FileIO", "Gtk", "ImageMagick", "Images", "LibGit2", "OffsetArrays", "PGFPlotsX", "PlotlyJS", "HDF5", "RDatasets", "StableRNGs", "StaticArrays", "StatsPlots", "Test", "TestImages", "UnicodePlots", "VisualRegressionTests"]
+test = ["Colors", "Distributions", "FileIO", "Gtk", "ImageMagick", "Images", "LibGit2", "OffsetArrays", "PGFPlotsX", "PlotlyJS", "HDF5", "RDatasets", "StableRNGs", "StaticArrays", "StatsPlots", "Test", "TestImages", "UnicodePlots", "VisualRegressionTests"]
diff --git a/src/Plots.jl b/src/Plots.jl
index cea12a03..b1fe9125 100644
--- a/src/Plots.jl
+++ b/src/Plots.jl
@@ -209,6 +209,7 @@ include("colorbars.jl")
 include("axes.jl")
 include("args.jl")
 include("components.jl")
+include("consts.jl")
 include("themes.jl")
 include("plot.jl")
 include("pipeline.jl")
diff --git a/src/arg_desc.jl b/src/arg_desc.jl
index 5ec9a4d6..20a4a245 100644
--- a/src/arg_desc.jl
+++ b/src/arg_desc.jl
@@ -77,37 +77,37 @@ const _arg_desc = KW(
     :warn_on_unsupported      => "Bool. Warn on unsupported attributes, series types and marker shapes",
 
     # subplot args
-    :title                    => "String. Subplot title.",
-    :titlelocation            => "Symbol. Position of subplot title. Values: `:left`, `:center`, `:right`",
-    :titlefontfamily          => "String or Symbol. Font family of subplot title.",
-    :titlefontsize            => "Integer. Font pointsize of subplot title.",
-    :titlefonthalign          => "Symbol. Font horizontal alignment of subplot title: :hcenter, :left, :right or :center",
-    :titlefontvalign          => "Symbol. Font vertical alignment of subplot title: :vcenter, :top, :bottom or :center",
-    :titlefontrotation        => "Real. Font rotation of subplot title",
-    :titlefontcolor           => "Color Type. Font color of subplot title",
+    :title => "String. Subplot title.",
+    :titlelocation => "Symbol. Position of subplot title. Values: `:left`, `:center`, `:right`",
+    :titlefontfamily => "String or Symbol. Font family of subplot title.",
+    :titlefontsize => "Integer. Font pointsize of subplot title.",
+    :titlefonthalign => "Symbol. Font horizontal alignment of subplot title: :hcenter, :left, :right or :center",
+    :titlefontvalign => "Symbol. Font vertical alignment of subplot title: :vcenter, :top, :bottom or :center",
+    :titlefontrotation => "Real. Font rotation of subplot title",
+    :titlefontcolor => "Color Type. Font color of subplot title",
     :background_color_subplot => "Color Type or `:match` (matches `:background_color`).  Base background color of the subplot.",
-    :background_color_legend  => "Color Type or `:match` (matches `:background_color_subplot`).  Background color of the legend.",
-    :background_color_inside  => "Color Type or `:match` (matches `:background_color_subplot`).  Background color inside the plot area (under the grid).",
+    :legend_background_color => "Color Type or `:match` (matches `:background_color_subplot`).  Background color of the legend.",
+    :background_color_inside => "Color Type or `:match` (matches `:background_color_subplot`).  Background color inside the plot area (under the grid).",
     :foreground_color_subplot => "Color Type or `:match` (matches `:foreground_color`).  Base foreground color of the subplot.",
-    :foreground_color_legend  => "Color Type or `:match` (matches `:foreground_color_subplot`).  Foreground color of the legend.",
-    :foreground_color_title   => "Color Type or `:match` (matches `:foreground_color_subplot`). Color of subplot title.",
-    :color_palette            => "Vector of colors (cycle through) or color gradient (generate list from gradient) or `:auto` (generate a color list using `Colors.distiguishable_colors` and custom seed colors chosen to contrast with the background).  The color palette is a color list from which series colors are automatically chosen.",
-    :legend                   => "Bool (show the legend?) or (x,y) tuple or Symbol (legend position) or angle or (angle,inout) tuple. Bottom left corner of legend is placed at (x,y).  Symbol values: `:none`; `:best`; `:inline`; `:inside`; `:legend`; any valid combination of `:(outer ?)(top/bottom ?)(right/left ?)`, i.e.: `:top`, `:topright`, `:outerleft`, `:outerbottomright` ... (note: only some may be supported in each backend). Legend is positioned at (angle degrees) (so (90,:outer) is roughly equivalent to :outertop), close to the inside of the axes or the outside if inout=:outer.",
-    :legendfontfamily         => "String or Symbol. Font family of legend entries.",
-    :legendfontsize           => "Integer. Font pointsize of legend entries.",
-    :legendfonthalign         => "Symbol. Font horizontal alignment of legend entries: :hcenter, :left, :right or :center",
-    :legendfontvalign         => "Symbol. Font vertical alignment of legend entries: :vcenter, :top, :bottom or :center",
-    :legendfontrotation       => "Real. Font rotation of legend entries",
-    :legendfontcolor          => "Color Type. Font color of legend entries",
-    :legendtitle              => "String. Legend title.",
-    :legendtitlefontfamily    => "String or Symbol. Font family of the legend title.",
-    :legendtitlefontsize      => "Integer. Font pointsize the legend title.",
-    :legendtitlefonthalign    => "Symbol. Font horizontal alignment of the legend title: :hcenter, :left, :right or :center",
-    :legendtitlefontvalign    => "Symbol. Font vertical alignment of the legend title: :vcenter, :top, :bottom or :center",
-    :legendtitlefontrotation  => "Real. Font rotation of the legend title",
-    :legendtitlefontcolor     => "Color Type. Font color of the legend title",
-    :colorbar                 => "Bool (show the colorbar?) or Symbol (colorbar position).  Symbol values: `:none`, `:best`, `:right`, `:left`, `:top`, `:bottom`, `:legend` (matches legend value) (note: only some may be supported in each backend)",
-    :clims                    => "`:auto`, NTuple{2,Number}, or a function that takes series data in and returns NTuple{2,Number}.  Fixes the limits of the colorbar.",
+    :legend_foreground_color => "Color Type or `:match` (matches `:foreground_color_subplot`).  Foreground color of the legend.",
+    :foreground_color_title => "Color Type or `:match` (matches `:foreground_color_subplot`). Color of subplot title.",
+    :color_palette => "Vector of colors (cycle through) or color gradient (generate list from gradient) or `:auto` (generate a color list using `Colors.distiguishable_colors` and custom seed colors chosen to contrast with the background).  The color palette is a color list from which series colors are automatically chosen.",
+    :legend => "Bool (show the legend?) or (x,y) tuple or Symbol (legend position) or angle or (angle,inout) tuple. Bottom left corner of legend is placed at (x,y).  Symbol values: `:none`; `:best`; `:inline`; `:inside`; `:legend`; any valid combination of `:(outer ?)(top/bottom ?)(right/left ?)`, i.e.: `:top`, `:topright`, `:outerleft`, `:outerbottomright` ... (note: only some may be supported in each backend)",
+    :legend_font_family => "String or Symbol. Font family of legend entries.",
+    :legend_font_pointsize => "Integer. Font pointsize of legend entries.",
+    :legend_font_halign => "Symbol. Font horizontal alignment of legend entries: :hcenter, :left, :right or :center",
+    :legend_font_valign => "Symbol. Font vertical alignment of legend entries: :vcenter, :top, :bottom or :center",
+    :legend_font_rotation => "Real. Font rotation of legend entries",
+    :legend_font_color => "Color Type. Font color of legend entries",
+    :legend_title => "String. Legend title.",
+    :legend_title_font_family => "String or Symbol. Font family of the legend title.",
+    :legend_title_font_pointsize => "Integer. Font pointsize the legend title.",
+    :legend_title_font_halign => "Symbol. Font horizontal alignment of the legend title: :hcenter, :left, :right or :center",
+    :legend_title_font_valign => "Symbol. Font vertical alignment of the legend title: :vcenter, :top, :bottom or :center",
+    :legend_title_font_rotation => "Real. Font rotation of the legend title",
+    :legend_title_font_color => "Color Type. Font color of the legend title",
+    :colorbar => "Bool (show the colorbar?) or Symbol (colorbar position).  Symbol values: `:none`, `:best`, `:right`, `:left`, `:top`, `:bottom`, `:legend` (matches legend value) (note: only some may be supported in each backend)",
+    :clims => "`:auto`, NTuple{2,Number}, or a function that takes series data in and returns NTuple{2,Number}.  Fixes the limits of the colorbar.",
     :colorbar_fontfamily      => "String or Symbol. Font family of colobar entries.",
     :colorbar_ticks           => "Vector of numbers (set the tick values), Tuple of (tickvalues, ticklabels), or `:auto`",
     :colorbar_tickfontfamily  => "String or Symbol. Font family of colorbar tick labels.",
@@ -115,26 +115,26 @@ const _arg_desc = KW(
     :colorbar_tickfontcolor   => "Color Type. Font color of colorbar tick entries",
     :colorbar_scale           => "Symbol. Scale of the colorbar axis: `:none`, `:ln`, `:log2`, `:log10`",
     :colorbar_formatter       => "Function, :scientific, :plain or :auto. A method which converts a number to a string for tick labeling.",
-    :legendfont               => "Font. Font of legend items.",
-    :legendtitlefont          => "Font. Font of the legend title.",
-    :annotations              => "(x,y,text) tuple(s).  Can be a single tuple or a list of them.  Text can be String, PlotText (created with `text(args...)`), or a tuple of arguments to `text` (e.g., `(\"Label\", 8, :red, :top)`).  Add one-off text annotations at the x,y coordinates.",
+    :legendfont => "Font. Font of legend items.",
+    :legend_titlefont => "Font. Font of the legend title.",
+    :annotations => "(x,y,text) tuple(s).  Can be a single tuple or a list of them.  Text can be String, PlotText (created with `text(args...)`), or a tuple of arguments to `text` (e.g., `(\"Label\", 8, :red, :top)`). Add one-off text annotations at the x,y coordinates.",
     :annotationfontfamily     => "String or Symbol. Font family of annotations.",
     :annotationfontsize       => "Integer. Font pointsize of annotations.",
     :annotationhalign         => "Symbol. horizontal alignment of annotations, :hcenter, :left, :right or :center.",
     :annotationvalign         => "Symbol. Vertical alignment of annotations, :vcenter, :top, :bottom or :center.",
     :annotationrotation       => "Float. Rotation of annotations in degrees.",
     :annotationcolor          => "Colorant or :match. Color of annotations.",
-    :projection               => "Symbol or String.  '3d' or 'polar'",
-    :aspect_ratio             => "Symbol (:equal or :none) or Number. Plot area is resized so that 1 y-unit is the same size as `aspect_ratio` x-units. With `:none`, images inherit aspect ratio of the plot area.",
-    :margin                   => "Measure (multiply by `mm`, `px`, etc). Base for individual margins... not directly used.  Specifies the extra padding around subplots.",
-    :left_margin              => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding to the left of the subplot.",
-    :top_margin               => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding on the top of the subplot.",
-    :right_margin             => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding to the right of the subplot.",
-    :bottom_margin            => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding on the bottom of the subplot.",
-    :subplot_index            => "Integer.  Internal (not set by user).  Specifies the index of this subplot in the Plot's `plt.subplot` list.",
-    :colorbar_title           => "String.  Title of colorbar.",
-    :framestyle               => "Symbol.  Style of the axes frame. Choose from $(_allFramestyles)",
-    :camera                   => "NTuple{2, Real}. Sets the view angle (azimuthal, elevation) for 3D plots",
+    :projection => "Symbol or String.  '3d' or 'polar'",
+    :aspect_ratio => "Symbol (:equal or :none) or Number. Plot area is resized so that 1 y-unit is the same size as `aspect_ratio` x-units. With `:none`, images inherit aspect ratio of the plot area.",
+    :margin => "Measure (multiply by `mm`, `px`, etc). Base for individual margins... not directly used.  Specifies the extra padding around subplots.",
+    :left_margin => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding to the left of the subplot.",
+    :top_margin => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding on the top of the subplot.",
+    :right_margin => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding to the right of the subplot.",
+    :bottom_margin => "Measure (multiply by `mm`, `px`, etc) or `:match` (matches `:margin`).  Specifies the extra padding on the bottom of the subplot.",
+    :subplot_index => "Integer.  Internal (not set by user).  Specifies the index of this subplot in the Plot's `plt.subplot` list.",
+    :colorbar_title => "String.  Title of colorbar.",
+    :framestyle => "Symbol.  Style of the axes frame. Choose from $(_allFramestyles)",
+    :camera => "NTuple{2, Real}. Sets the view angle (azimuthal, elevation) for 3D plots",
 
     # axis args
     :guide                       => "String. Axis guide (label).",
diff --git a/src/args.jl b/src/args.jl
index ab8f1329..89b8b858 100644
--- a/src/args.jl
+++ b/src/args.jl
@@ -445,14 +445,10 @@ const _subplot_defaults = KW(
     :titlefontrotation => 0.0,
     :titlefontcolor => :match,
     :background_color_subplot => :match,            # default for other bg colors... match takes plot default
-    :background_color_legend => :match,            # background of legend
     :background_color_inside => :match,            # background inside grid
     :foreground_color_subplot => :match,            # default for other fg colors... match takes plot default
-    :foreground_color_legend => :match,            # foreground of legend
     :foreground_color_title => :match,            # title color
     :color_palette => :auto,
-    :legend => :best,
-    :legendtitle => nothing,
     :colorbar => :legend,
     :clims => :auto,
     :colorbar_fontfamily => :match,
@@ -467,18 +463,6 @@ const _subplot_defaults = KW(
     :colorbar_formatter => :auto,
     :colorbar_discrete_values => [],
     :colorbar_continuous_values => zeros(0),
-    :legendfontfamily => :match,
-    :legendfontsize => 8,
-    :legendfonthalign => :hcenter,
-    :legendfontvalign => :vcenter,
-    :legendfontrotation => 0.0,
-    :legendfontcolor => :match,
-    :legendtitlefontfamily => :match,
-    :legendtitlefontsize => 11,
-    :legendtitlefonthalign => :hcenter,
-    :legendtitlefontvalign => :vcenter,
-    :legendtitlefontrotation => 0.0,
-    :legendtitlefontcolor => :match,
     :annotations => [],                # annotation tuples... list of (x,y,annotation)
     :annotationfontfamily => :match,
     :annotationfontsize => 14,
@@ -497,6 +481,7 @@ const _subplot_defaults = KW(
     :colorbar_title => "",
     :colorbar_titlefontsize => 10,
     :colorbar_title_location => :center,           # also :left or :right
+    :colorbar_fontfamily => :match,
     :colorbar_titlefontfamily => :match,
     :colorbar_titlefonthalign => :hcenter,
     :colorbar_titlefontvalign => :vcenter,
@@ -566,80 +551,6 @@ const _suppress_warnings = Set{Symbol}([
     :relative_bbox,
 ])
 
-# add defaults for the letter versions
-const _axis_defaults_byletter = KW()
-
-function reset_axis_defaults_byletter!()
-    for letter in (:x, :y, :z)
-        _axis_defaults_byletter[letter] = KW()
-        for (k, v) in _axis_defaults
-            _axis_defaults_byletter[letter][k] = v
-        end
-    end
-end
-reset_axis_defaults_byletter!()
-
-const _all_defaults = KW[_series_defaults, _plot_defaults, _subplot_defaults]
-
-const _initial_defaults = deepcopy(_all_defaults)
-const _initial_axis_defaults = deepcopy(_axis_defaults)
-
-# to be able to reset font sizes to initial values
-const _initial_plt_fontsizes =
-    Dict(:plot_titlefontsize => _plot_defaults[:plot_titlefontsize])
-
-const _initial_sp_fontsizes = Dict(
-    :titlefontsize => _subplot_defaults[:titlefontsize],
-    :legendfontsize => _subplot_defaults[:legendfontsize],
-    :legendtitlefontsize => _subplot_defaults[:legendtitlefontsize],
-    :annotationfontsize => _subplot_defaults[:annotationfontsize],
-    :colorbar_tickfontsize => _subplot_defaults[:colorbar_tickfontsize],
-    :colorbar_titlefontsize => _subplot_defaults[:colorbar_titlefontsize],
-)
-
-const _initial_ax_fontsizes = Dict(
-    :tickfontsize  => _axis_defaults[:tickfontsize],
-    :guidefontsize => _axis_defaults[:guidefontsize],
-)
-
-const _initial_fontsizes =
-    merge(_initial_plt_fontsizes, _initial_sp_fontsizes, _initial_ax_fontsizes)
-
-const _internal_args =
-    [:plot_object, :series_plotindex, :markershape_to_add, :letter, :idxfilter]
-
-const _axis_args = sort(union(collect(keys(_axis_defaults))))
-const _series_args = sort(union(collect(keys(_series_defaults))))
-const _subplot_args = sort(union(collect(keys(_subplot_defaults))))
-const _plot_args = sort(union(collect(keys(_plot_defaults))))
-
-const _magic_axis_args = [:axis, :tickfont, :guidefont, :grid, :minorgrid]
-const _magic_subplot_args =
-    [:titlefont, :legendfont, :legendtitlefont, :plot_titlefont, :colorbar_titlefont]
-const _magic_series_args = [:line, :marker, :fill]
-
-const _all_axis_args = sort(union([_axis_args; _magic_axis_args]))
-const _all_subplot_args = sort(union([_subplot_args; _magic_subplot_args]))
-const _all_series_args = sort(union([_series_args; _magic_series_args]))
-const _all_plot_args = _plot_args
-
-for letter in (:x, :y, :z)
-    _attrsymbolcache[letter] = Dict{Symbol,Symbol}()
-    for k in keys(_axis_defaults)
-        # populate attribute cache
-        lk = Symbol(letter, k)
-        _attrsymbolcache[letter][k] = lk
-        # allow the underscore version too: xguide or x_guide
-        add_aliases(lk, Symbol(letter, "_", k))
-    end
-    for k in (_magic_axis_args..., :(_discrete_indices))
-        _attrsymbolcache[letter][k] = Symbol(letter, k)
-    end
-end
-
-const _all_args =
-    sort(union([_all_axis_args; _all_subplot_args; _all_series_args; _all_plot_args]))
-
 is_subplot_attr(k) = k in _all_subplot_args
 is_series_attr(k) = k in _all_series_args
 is_axis_attr(k) = Symbol(chop(string(k); head = 1, tail = 0)) in _all_axis_args
@@ -671,9 +582,46 @@ aliases(aliasMap::Dict{Symbol,Symbol}, val) =
     sortedkeys(filter((k, v) -> v == val, aliasMap))
 
 # -----------------------------------------------------------------------------
-
+# legend
+add_aliases(:legend_position, :legend, :leg, :key, :legends)
+add_aliases(
+    :legend_background_color,
+    :bg_legend,
+    :bglegend,
+    :bgcolor_legend,
+    :bg_color_legend,
+    :background_legend,
+    :background_colour_legend,
+    :bgcolour_legend,
+    :bg_colour_legend,
+    :background_color_legend,
+)
+add_aliases(
+    :legend_foreground_color,
+    :fg_legend,
+    :fglegend,
+    :fgcolor_legend,
+    :fg_color_legend,
+    :foreground_legend,
+    :foreground_colour_legend,
+    :fgcolour_legend,
+    :fg_colour_legend,
+    :foreground_color_legend,
+)
+add_aliases(:legend_font_pointsize, :legendfontsize)
+add_aliases(
+    :legend_title,
+    :key_title,
+    :keytitle,
+    :label_title,
+    :labeltitle,
+    :leg_title,
+    :legtitle,
+)
+add_aliases(:legend_title_font_pointsize, :legendtitlefontsize)
 # margin
 add_aliases(:left_margin, :leftmargin)
+
 add_aliases(:top_margin, :topmargin)
 add_aliases(:bottom_margin, :bottommargin)
 add_aliases(:right_margin, :rightmargin)
@@ -696,17 +644,6 @@ add_aliases(
     :bgcolour,
     :bg_colour,
 )
-add_aliases(
-    :background_color_legend,
-    :bg_legend,
-    :bglegend,
-    :bgcolor_legend,
-    :bg_color_legend,
-    :background_legend,
-    :background_colour_legend,
-    :bgcolour_legend,
-    :bg_colour_legend,
-)
 add_aliases(
     :background_color_subplot,
     :bg_subplot,
@@ -750,17 +687,7 @@ add_aliases(
     :fgcolour,
     :fg_colour,
 )
-add_aliases(
-    :foreground_color_legend,
-    :fg_legend,
-    :fglegend,
-    :fgcolor_legend,
-    :fg_color_legend,
-    :foreground_legend,
-    :foreground_colour_legend,
-    :fgcolour_legend,
-    :fg_colour_legend,
-)
+
 add_aliases(
     :foreground_color_subplot,
     :fg_subplot,
@@ -772,6 +699,90 @@ add_aliases(
     :fgcolour_subplot,
     :fg_colour_subplot,
 )
+add_aliases(
+    :foreground_color_grid,
+    :fg_grid,
+    :fggrid,
+    :fgcolor_grid,
+    :fg_color_grid,
+    :foreground_grid,
+    :foreground_colour_grid,
+    :fgcolour_grid,
+    :fg_colour_grid,
+    :gridcolor,
+)
+add_aliases(
+    :foreground_color_minor_grid,
+    :fg_minor_grid,
+    :fgminorgrid,
+    :fgcolor_minorgrid,
+    :fg_color_minorgrid,
+    :foreground_minorgrid,
+    :foreground_colour_minor_grid,
+    :fgcolour_minorgrid,
+    :fg_colour_minor_grid,
+    :minorgridcolor,
+)
+add_aliases(
+    :foreground_color_title,
+    :fg_title,
+    :fgtitle,
+    :fgcolor_title,
+    :fg_color_title,
+    :foreground_title,
+    :foreground_colour_title,
+    :fgcolour_title,
+    :fg_colour_title,
+    :titlecolor,
+)
+add_aliases(
+    :foreground_color_axis,
+    :fg_axis,
+    :fgaxis,
+    :fgcolor_axis,
+    :fg_color_axis,
+    :foreground_axis,
+    :foreground_colour_axis,
+    :fgcolour_axis,
+    :fg_colour_axis,
+    :axiscolor,
+)
+add_aliases(
+    :foreground_color_border,
+    :fg_border,
+    :fgborder,
+    :fgcolor_border,
+    :fg_color_border,
+    :foreground_border,
+    :foreground_colour_border,
+    :fgcolour_border,
+    :fg_colour_border,
+    :bordercolor,
+)
+add_aliases(
+    :foreground_color_text,
+    :fg_text,
+    :fgtext,
+    :fgcolor_text,
+    :fg_color_text,
+    :foreground_text,
+    :foreground_colour_text,
+    :fgcolour_text,
+    :fg_colour_text,
+    :textcolor,
+)
+add_aliases(
+    :foreground_color_guide,
+    :fg_guide,
+    :fgguide,
+    :fgcolor_guide,
+    :fg_color_guide,
+    :foreground_guide,
+    :foreground_colour_guide,
+    :fgcolour_guide,
+    :fg_colour_guide,
+    :guidecolor,
+)
 
 add_aliases(
     :foreground_color_title,
@@ -932,7 +943,19 @@ add_aliases(:group, :g, :grouping)
 add_aliases(:bins, :bin, :nbin, :nbins, :nb)
 add_aliases(:ribbon, :rib)
 add_aliases(:annotations, :ann, :anns, :annotate, :annotation)
-
+add_aliases(:xguide, :xlabel, :xlab, :xl)
+add_aliases(:xlims, :xlim, :xlimit, :xlimits, :xrange)
+add_aliases(:xticks, :xtick)
+add_aliases(:xrotation, :xrot, :xr)
+add_aliases(:yguide, :ylabel, :ylab, :yl)
+add_aliases(:ylims, :ylim, :ylimit, :ylimits, :yrange)
+add_aliases(:yticks, :ytick)
+add_aliases(:yrotation, :yrot, :yr)
+add_aliases(:zguide, :zlabel, :zlab, :zl)
+add_aliases(:zlims, :zlim, :zlimit, :zlimits)
+add_aliases(:zticks, :ztick)
+add_aliases(:zrotation, :zrot, :zr)
+add_aliases(:guidefontsize, :labelfontsize)
 add_aliases(
     :fill_z,
     :fillz,
@@ -943,8 +966,6 @@ add_aliases(
     :surfcolor,
     :surfcolour,
 )
-add_aliases(:legend, :leg, :key)
-add_aliases(:legendtitle, :legend_title, :labeltitle, :label_title, :leg_title, :key_title)
 add_aliases(:colorbar, :cb, :cbar, :colorkey)
 add_aliases(
     :colorbar_title,
@@ -1020,13 +1041,6 @@ add_aliases(:camera, :cam, :viewangle, :view_angle)
 add_aliases(:contour_labels, :contourlabels, :clabels, :clabs)
 add_aliases(:warn_on_unsupported, :warn)
 
-# add all pluralized forms to the _keyAliases dict
-for arg in _all_args
-    add_aliases(arg, makeplural(arg))
-end
-# add all non_underscored forms to the _keyAliases
-add_non_underscore_aliases!(_keyAliases)
-
 # -----------------------------------------------------------------------------
 
 function parse_axis_kw(s::Symbol)
@@ -1535,8 +1549,9 @@ function RecipesPipeline.preprocess_attributes!(plotattributes::AKW)
     # end
 
     # legends
-    if haskey(plotattributes, :legend)
-        plotattributes[:legend] = convertLegendValue(plotattributes[:legend])
+    if haskey(plotattributes, :legend_position)
+        plotattributes[:legend_position] =
+            convertLegendValue(plotattributes[:legend_position])
     end
     if haskey(plotattributes, :colorbar)
         plotattributes[:colorbar] = convertLegendValue(plotattributes[:colorbar])
@@ -1667,15 +1682,18 @@ function convertLegendValue(val::Symbol)
         :inline,
     )
         val
+    elseif val == :horizontal
+        -1
     else
         error("Invalid symbol for legend: $val")
     end
 end
+convertLegendValue(val::Real) = val
 convertLegendValue(val::Bool) = val ? :best : :none
 convertLegendValue(val::Nothing) = :none
+convertLegendValue(v::Union{Tuple,NamedTuple}) = convertLegendValue.(v)
 convertLegendValue(v::Tuple{S,T}) where {S<:Real,T<:Real} = v
 convertLegendValue(v::Tuple{<:Real,Symbol}) = v
-convertLegendValue(v::Real) = v
 convertLegendValue(v::AbstractArray) = map(convertLegendValue, v)
 
 # -----------------------------------------------------------------------------
@@ -1761,9 +1779,9 @@ end
 # when a value can be `:match`, this is the key that should be used instead for value retrieval
 const _match_map = KW(
     :background_color_outside => :background_color,
-    :background_color_legend  => :background_color_subplot,
+    :legend_background_color  => :background_color_subplot,
     :background_color_inside  => :background_color_subplot,
-    :foreground_color_legend  => :foreground_color_subplot,
+    :legend_foreground_color  => :foreground_color_subplot,
     :foreground_color_title   => :foreground_color_subplot,
     :left_margin              => :margin,
     :top_margin               => :margin,
@@ -1771,10 +1789,10 @@ const _match_map = KW(
     :bottom_margin            => :margin,
     :titlefontfamily          => :fontfamily_subplot,
     :titlefontcolor           => :foreground_color_subplot,
-    :legendfontfamily         => :fontfamily_subplot,
-    :legendfontcolor          => :foreground_color_subplot,
-    :legendtitlefontfamily    => :fontfamily_subplot,
-    :legendtitlefontcolor     => :foreground_color_subplot,
+    :legend_font_family       => :fontfamily_subplot,
+    :legend_font_color        => :foreground_color_subplot,
+    :legend_title_font_family => :fontfamily_subplot,
+    :legend_title_font_color  => :foreground_color_subplot,
     :colorbar_fontfamily      => :fontfamily_subplot,
     :colorbar_titlefontfamily => :fontfamily_subplot,
     :colorbar_titlefontcolor  => :foreground_color_subplot,
@@ -1905,10 +1923,10 @@ function _update_subplot_periphery(sp::Subplot, anns::AVec)
     sp.attr[:annotations] = newanns
 
     # handle legend/colorbar
-    sp.attr[:legend] = convertLegendValue(sp.attr[:legend])
+    sp.attr[:legend_position] = convertLegendValue(sp.attr[:legend_position])
     sp.attr[:colorbar] = convertLegendValue(sp.attr[:colorbar])
     if sp.attr[:colorbar] == :legend
-        sp.attr[:colorbar] = sp.attr[:legend]
+        sp.attr[:colorbar] = sp.attr[:legend_position]
     end
     return
 end
@@ -1917,12 +1935,12 @@ function _update_subplot_colors(sp::Subplot)
     # background colors
     color_or_nothing!(sp.attr, :background_color_subplot)
     sp.attr[:color_palette] = get_color_palette(sp.attr[:color_palette], 30)
-    color_or_nothing!(sp.attr, :background_color_legend)
+    color_or_nothing!(sp.attr, :legend_background_color)
     color_or_nothing!(sp.attr, :background_color_inside)
 
     # foreground colors
     color_or_nothing!(sp.attr, :foreground_color_subplot)
-    color_or_nothing!(sp.attr, :foreground_color_legend)
+    color_or_nothing!(sp.attr, :legend_foreground_color)
     color_or_nothing!(sp.attr, :foreground_color_title)
     return
 end
@@ -2209,7 +2227,16 @@ end
 
 #--------------------------------------------------
 ## inspired by Base.@kwdef
-macro add_attributes(level, expr)
+"""
+    add_attributes(level, expr, match_table)
+
+Takes a `struct` definition and recurses into its fields to create keywords by chaining the field names with the structs' name with underscore.
+Also creates pluralized and non-underscore aliases for these keywords.
+- `level` indicates which group of `plot`, `subplot`, `series`, etc. the keywords belong to.
+- `expr` is the struct definition with default values like `Base.@kwdef`
+- `match_table` is an expression of the form `:match = (symbols)`, with symbols whose default value should be `:match`
+"""
+macro add_attributes(level, expr, match_table)
     expr = macroexpand(__module__, expr) # to expand @static
     expr isa Expr && expr.head === :struct || error("Invalid usage of @add_attributes")
     T = expr.args[2]
@@ -2217,16 +2244,18 @@ macro add_attributes(level, expr)
         T = T.args[1]
     end
 
-    key_args = Any[]
-    value_args = Any[]
+    key_dict = KW()
 
-    _splitdef!(expr.args[3], value_args, key_args)
+    _splitdef!(expr.args[3], key_dict)
 
     insert_block = Expr(:block)
-    for (key, value) in zip(key_args, value_args)
+    for (key, value) in key_dict
         # e.g. _series_defualts[key] = value
         exp_key = Symbol(lowercase(string(T)), "_", key)
         pl_key = makeplural(exp_key)
+        if QuoteNode(exp_key) in match_table.args[2].args
+            value = QuoteNode(:match)
+        end
         push!(
             insert_block.args,
             Expr(
@@ -2260,7 +2289,7 @@ macro add_attributes(level, expr)
     end |> esc
 end
 
-function _splitdef!(blk, value_args, key_args)
+function _splitdef!(blk, key_dict)
     for i in eachindex(blk.args)
         ei = blk.args[i]
         if ei isa Symbol
@@ -2275,20 +2304,25 @@ function _splitdef!(blk, value_args, key_args)
                 elseif lhs isa Expr && lhs.head === :(::) && lhs.args[1] isa Symbol
                     #  var::T = defexpr
                     var = lhs.args[1]
+                    type = lhs.args[2]
+                    if @isdefined type
+                        for field in fieldnames(getproperty(Plots, type))
+                            key_dict[Symbol(var, "_", field)] =
+                                :(getfield($(ei.args[2]), $(QuoteNode(field))))
+                        end
+                    end
                 else
                     # something else, e.g. inline inner constructor
                     #   F(...) = ...
                     continue
                 end
                 defexpr = ei.args[2]  # defexpr
-                push!(value_args, defexpr)
-                push!(key_args, var)
+                key_dict[var] = defexpr
                 blk.args[i] = lhs
             elseif ei.head === :(::) && ei.args[1] isa Symbol
                 # var::Typ
                 var = ei.args[1]
-                push!(value_args, var)
-                push!(key_args, var)
+                key_dict[var] = defexpr
             elseif ei.head === :block
                 # can arise with use of @static inside type decl
                 _kwdef!(ei, value_args, key_args)
diff --git a/src/backends.jl b/src/backends.jl
index c9e65aa5..63e1c3d9 100644
--- a/src/backends.jl
+++ b/src/backends.jl
@@ -310,10 +310,10 @@ _initialize_backend(pkg::GRBackend) = nothing
 
 const _gr_attr = merge_with_base_supported([
     :annotations,
-    :background_color_legend,
+    :legend_background_color,
     :background_color_inside,
     :background_color_outside,
-    :foreground_color_legend,
+    :legend_foreground_color,
     :foreground_color_grid,
     :foreground_color_axis,
     :foreground_color_text,
@@ -350,12 +350,12 @@ const _gr_attr = merge_with_base_supported([
     :titlefontvalign,
     :titlefontrotation,
     :titlefontcolor,
-    :legendfontfamily,
-    :legendfontsize,
-    :legendfonthalign,
-    :legendfontvalign,
-    :legendfontrotation,
-    :legendfontcolor,
+    :legend_font_family,
+    :legend_font_pointsize,
+    :legend_font_halign,
+    :legend_font_valign,
+    :legend_font_rotation,
+    :legend_font_color,
     :tickfontfamily,
     :tickfontsize,
     :tickfonthalign,
@@ -372,17 +372,11 @@ const _gr_attr = merge_with_base_supported([
     :gridalpha,
     :gridstyle,
     :gridlinewidth,
-    :legend,
-    :legendtitle,
+    :legend_position,
+    :legend_title,
     :colorbar,
     :colorbar_title,
     :colorbar_entry,
-    :colorbar_titlefontfamily,
-    :colorbar_titlefontsize,
-    :colorbar_titlefontvalign,
-    :colorbar_titlefonthalign,
-    :colorbar_titlefontrotation,
-    :colorbar_titlefontcolor,
     :fill_z,
     :line_z,
     :marker_z,
@@ -439,10 +433,10 @@ end
 
 const _plotly_attr = merge_with_base_supported([
     :annotations,
-    :background_color_legend,
+    :legend_background_color,
     :background_color_inside,
     :background_color_outside,
-    :foreground_color_legend,
+    :legend_foreground_color,
     :foreground_color_guide,
     :foreground_color_grid,
     :foreground_color_axis,
@@ -475,9 +469,9 @@ const _plotly_attr = merge_with_base_supported([
     :titlefonthalign,
     :titlefontvalign,
     :titlefontcolor,
-    :legendfontfamily,
-    :legendfontsize,
-    :legendfontcolor,
+    :legend_font_family,
+    :legend_font_pointsize,
+    :legend_font_color,
     :tickfontfamily,
     :tickfontsize,
     :tickfontcolor,
@@ -565,10 +559,10 @@ defaultOutputFormat(plt::Plot{Plots.PlotlyBackend}) = "html"
 
 const _pgfplots_attr = merge_with_base_supported([
     :annotations,
-    :background_color_legend,
+    :legend_background_color,
     :background_color_inside,
     # :background_color_outside,
-    # :foreground_color_legend,
+    # :legend_foreground_color,
     :foreground_color_grid,
     :foreground_color_axis,
     :foreground_color_text,
@@ -688,11 +682,11 @@ end
 
 const _pyplot_attr = merge_with_base_supported([
     :annotations,
-    :background_color_legend,
+    :legend_background_color,
     :background_color_inside,
     :background_color_outside,
     :foreground_color_grid,
-    :foreground_color_legend,
+    :legend_foreground_color,
     :foreground_color_title,
     :foreground_color_axis,
     :foreground_color_border,
@@ -731,9 +725,9 @@ const _pyplot_attr = merge_with_base_supported([
     :titlefontfamily,
     :titlefontsize,
     :titlefontcolor,
-    :legendfontfamily,
-    :legendfontsize,
-    :legendfontcolor,
+    :legend_font_family,
+    :legend_font_pointsize,
+    :legend_font_color,
     :tickfontfamily,
     :tickfontsize,
     :tickfontcolor,
@@ -744,8 +738,8 @@ const _pyplot_attr = merge_with_base_supported([
     :gridalpha,
     :gridstyle,
     :gridlinewidth,
-    :legend,
-    :legendtitle,
+    :legend_position,
+    :legend_title,
     :colorbar,
     :colorbar_title,
     :colorbar_entry,
@@ -981,11 +975,11 @@ const _canvas_type = Ref(:auto)
 
 const _hdf5_attr = merge_with_base_supported([
     :annotations,
-    :background_color_legend,
+    :legend_background_color,
     :background_color_inside,
     :background_color_outside,
     :foreground_color_grid,
-    :foreground_color_legend,
+    :legend_foreground_color,
     :foreground_color_title,
     :foreground_color_axis,
     :foreground_color_border,
@@ -1083,11 +1077,11 @@ const HDF5PLOT_PLOTREF = HDF5Plot_PlotRef(nothing)
 
 const _inspectdr_attr = merge_with_base_supported([
     :annotations,
-    :background_color_legend,
+    :legend_background_color,
     :background_color_inside,
     :background_color_outside,
     # :foreground_color_grid,
-    :foreground_color_legend,
+    :legend_foreground_color,
     :foreground_color_title,
     :foreground_color_axis,
     :foreground_color_border,
@@ -1120,9 +1114,9 @@ const _inspectdr_attr = merge_with_base_supported([
     :titlefontfamily,
     :titlefontsize,
     :titlefontcolor,
-    :legendfontfamily,
-    :legendfontsize,
-    :legendfontcolor,
+    :legend_font_family,
+    :legend_font_pointsize,
+    :legend_font_color,
     :tickfontfamily,
     :tickfontsize,
     :tickfontcolor,
@@ -1130,7 +1124,7 @@ const _inspectdr_attr = merge_with_base_supported([
     :guidefontsize,
     :guidefontcolor,
     :grid,
-    :legend, #:colorbar,
+    :legend_position, #:colorbar,
     #    :marker_z,
     #    :line_z,
     #    :levels,
@@ -1186,10 +1180,10 @@ const _inspectdr_scale = [:identity, :ln, :log2, :log10]
 
 const _pgfplotsx_attr = merge_with_base_supported([
     :annotations,
-    :background_color_legend,
+    :legend_background_color,
     :background_color_inside,
     :background_color_outside,
-    :foreground_color_legend,
+    :legend_foreground_color,
     :foreground_color_grid,
     :foreground_color_axis,
     :foreground_color_text,
@@ -1226,12 +1220,12 @@ const _pgfplotsx_attr = merge_with_base_supported([
     :titlefontvalign,
     :titlefontrotation,
     :titlefontcolor,
-    :legendfontfamily,
-    :legendfontsize,
-    :legendfonthalign,
-    :legendfontvalign,
-    :legendfontrotation,
-    :legendfontcolor,
+    :legend_font_family,
+    :legend_font_pointsize,
+    :legend_font_halign,
+    :legend_font_valign,
+    :legend_font_rotation,
+    :legend_font_color,
     :tickfontfamily,
     :tickfontsize,
     :tickfonthalign,
@@ -1248,8 +1242,8 @@ const _pgfplotsx_attr = merge_with_base_supported([
     :gridalpha,
     :gridstyle,
     :gridlinewidth,
-    :legend,
-    :legendtitle,
+    :legend_position,
+    :legend_title,
     :colorbar,
     :colorbar_title,
     :colorbar_entry,
diff --git a/src/backends/deprecated/pgfplots.jl b/src/backends/deprecated/pgfplots.jl
index 471618e0..034bb4f5 100644
--- a/src/backends/deprecated/pgfplots.jl
+++ b/src/backends/deprecated/pgfplots.jl
@@ -227,7 +227,7 @@ function pgf_series(sp::Subplot, series::Series)
             end
 
             # add to legend?
-            if i == 1 && sp[:legend] != :none && should_add_to_legend(series)
+            if i == 1 && sp[:legend_position] != :none && should_add_to_legend(series)
                 if plotattributes[:fillrange] !== nothing
                     push!(style, "forget plot")
                     push!(series_collection, pgf_fill_legend_hack(plotattributes, args))
@@ -590,32 +590,22 @@ function _update_plot_object(plt::Plot{PGFPlotsBackend})
             kw[:axisEqual] = "true"
         end
 
-        legpos = sp[:legend]
+        legpos = sp[:legend_position]
         if haskey(_pgfplots_legend_pos, legpos)
             kw[:legendPos] = _pgfplots_legend_pos[legpos]
         end
-        cstr, bg_alpha = pgf_color(plot_color(sp[:background_color_legend]))
-        fg_alpha = alpha(plot_color(sp[:foreground_color_legend]))
+        cstr, bg_alpha = pgf_color(plot_color(sp[:legend_background_color]))
+        fg_alpha = alpha(plot_color(sp[:legend_foreground_color]))
 
-        push!(
-            style,
-            string(
-                "legend style = {",
-                pgf_linestyle(
-                    pgf_thickness_scaling(sp),
-                    sp[:foreground_color_legend],
-                    fg_alpha,
-                    "solid",
-                ),
-                ",",
+        push!(style, string(
+            "legend style = {",
+                pgf_linestyle(pgf_thickness_scaling(sp), sp[:legend_foreground_color], fg_alpha, "solid", ), ",",
                 "fill = $cstr,",
                 "fill opacity = $bg_alpha,",
-                "text opacity = $(alpha(plot_color(sp[:legendfontcolor]))),",
-                "font = ",
-                pgf_font(sp[:legendfontsize], pgf_thickness_scaling(sp)),
-                "}",
-            ),
-        )
+                "text opacity = $(alpha(plot_color(sp[:legend_font_color]))),",
+                "font = ", pgf_font(sp[:legend_font_pointsize], pgf_thickness_scaling(sp)),
+            "}",
+        ))
 
         if any(s[:seriestype] == :contour for s in series_list(sp))
             kw[:view] = "{0}{90}"
diff --git a/src/backends/gr.jl b/src/backends/gr.jl
index a4cdfd56..b773a0fe 100644
--- a/src/backends/gr.jl
+++ b/src/backends/gr.jl
@@ -1024,7 +1024,7 @@ end
 ## Legend
 
 function gr_add_legend(sp, leg, viewport_plotarea)
-    if sp[:legend] ∉ (:none, :inline)
+    if !(sp[:legend_position] in(:none, :inline))
         GR.savestate()
         GR.selntran(0)
         GR.setscale(0)
@@ -1032,14 +1032,14 @@ function gr_add_legend(sp, leg, viewport_plotarea)
         if leg.w > 0
             xpos, ypos = gr_legend_pos(sp, leg, viewport_plotarea)
             GR.setfillintstyle(GR.INTSTYLE_SOLID)
-            gr_set_fillcolor(sp[:background_color_legend])
+            gr_set_fillcolor(sp[:legend_background_color])
             GR.fillrect(
                 xpos - leg.leftw,
                 xpos + leg.textw + leg.rightw,
                 ypos + leg.dy,
                 ypos - leg.h,
             ) # Allocating white space for actual legend width here
-            gr_set_line(1, :solid, sp[:foreground_color_legend], sp)
+            gr_set_line(1, :solid, sp[:legend_foreground_color], sp)
             GR.drawrect(
                 xpos - leg.leftw,
                 xpos + leg.textw + leg.rightw,
@@ -1047,10 +1047,10 @@ function gr_add_legend(sp, leg, viewport_plotarea)
                 ypos - leg.h,
             ) # Drawing actual legend width here
             i = 0
-            if sp[:legendtitle] !== nothing
+            if sp[:legend_title] !== nothing
                 GR.settextalign(GR.TEXT_HALIGN_CENTER, GR.TEXT_VALIGN_HALF)
                 gr_set_font(legendtitlefont(sp), sp)
-                gr_text(xpos - 0.03 + 0.5 * leg.w, ypos, string(sp[:legendtitle]))
+                gr_text(xpos - 0.03 + 0.5 * leg.w, ypos, string(sp[:legend_title]))
                 ypos -= leg.dy
                 gr_set_font(legendfont(sp), sp)
             end
@@ -1059,7 +1059,7 @@ function gr_add_legend(sp, leg, viewport_plotarea)
                 should_add_to_legend(series) || continue
                 st = series[:seriestype]
                 lc = get_linecolor(series, clims)
-                gr_set_line(sp[:legendfontsize] / 8, get_linestyle(series), lc, sp)
+                gr_set_line(sp[:legend_font_pointsize] / 8, get_linestyle(series), lc, sp)
 
                 if (
                     (st == :shape || series[:fillrange] !== nothing) &&
@@ -1100,16 +1100,16 @@ function gr_add_legend(sp, leg, viewport_plotarea)
                     ms = first(series[:markersize])
                     msw = first(series[:markerstrokewidth])
                     s, sw = if ms > 0
-                        0.8 * sp[:legendfontsize], 0.8 * sp[:legendfontsize] * msw / ms
+                        0.8 * sp[:legend_font_pointsize], 0.8 * sp[:legend_font_pointsize] * msw / ms
                     else
-                        0, 0.8 * sp[:legendfontsize] * msw / 8
+                        0, 0.8 * sp[:legend_font_pointsize] * msw / 8
                     end
                     gr_draw_markers(series, xpos - leg.width_factor * 2, ypos, clims, s, sw)
                 end
 
                 lab = series[:label]
                 GR.settextalign(GR.TEXT_HALIGN_LEFT, GR.TEXT_VALIGN_HALF)
-                gr_set_textcolor(plot_color(sp[:legendfontcolor]))
+                gr_set_textcolor(plot_color(sp[:legend_font_color]))
                 gr_text(xpos, ypos, string(lab))
                 ypos -= leg.dy
             end
@@ -1120,7 +1120,7 @@ function gr_add_legend(sp, leg, viewport_plotarea)
 end
 
 function gr_legend_pos(sp::Subplot, leg, viewport_plotarea)
-    s = sp[:legend]
+    s = sp[:legend_position]
     s isa Real && return gr_legend_pos(s, leg, viewport_plotarea)
     if s isa Tuple{<:Real,Symbol}
         if s[2] !== :outer
@@ -1237,14 +1237,14 @@ end
 
 function gr_get_legend_geometry(viewport_plotarea, sp)
     legendn = legendw = dy = 0
-    if sp[:legend] != :none
+    if sp[:legend_position] != :none
         GR.savestate()
         GR.selntran(0)
         GR.setscale(0)
-        if sp[:legendtitle] !== nothing
+        if sp[:legend_title] !== nothing
             gr_set_font(legendtitlefont(sp), sp)
             legendn += 1
-            tbx, tby = gr_inqtext(0, 0, string(sp[:legendtitle]))
+            tbx, tby = gr_inqtext(0, 0, string(sp[:legend_title]))
             legendw = tbx[3] - tbx[1]
             dy = tby[3] - tby[1]
         end
@@ -1272,7 +1272,6 @@ function gr_get_legend_geometry(viewport_plotarea, sp)
     y_legend_offset = (viewport_plotarea[4] - viewport_plotarea[3]) / 30
 
     dy *= get(sp[:extra_kwargs], :legend_hfactor, 1)
-
     legendh = dy * legendn
 
     return (
@@ -1291,7 +1290,7 @@ end
 ## Viewport, window and scale
 
 function gr_update_viewport_legend!(viewport_plotarea, sp, leg)
-    s = sp[:legend]
+    s = sp[:legend_position]
 
     xaxis, yaxis = sp[:xaxis], sp[:yaxis]
     xmirror =
@@ -1303,7 +1302,7 @@ function gr_update_viewport_legend!(viewport_plotarea, sp, leg)
 
     if s isa Tuple{<:Real,Symbol}
         if s[2] === :outer
-            (x, y) = gr_legend_pos(sp, leg, viewport_plotarea) # Dry run, to figure out
+            (x,y) = gr_legend_pos(sp, leg, viewport_plotarea) # Dry run, to figure out
             if x < viewport_plotarea[1]
                 viewport_plotarea[1] +=
                     leg.leftw +
@@ -1340,7 +1339,7 @@ function gr_update_viewport_legend!(viewport_plotarea, sp, leg)
                 leg.h + leg.dy + leg.yoffset + !xmirror * gr_axis_height(sp, sp[:xaxis])
         end
     end
-    if s === :inline
+    if s == :inline
         if sp[:yaxis][:mirror]
             viewport_plotarea[1] += leg.w
         else
@@ -1841,7 +1840,7 @@ function gr_add_series(sp, series)
     elseif st in (:surface, :wireframe, :mesh3d)
         gr_draw_surface(series, x, y, z, clims)
     elseif st === :volume
-        sp[:legend] = :none
+        sp[:legend_position] = :none
         GR.gr3.clear()
         dmin, dmax = GR.gr3.volume(y.v, 0)
     elseif st === :heatmap
@@ -1859,9 +1858,9 @@ function gr_add_series(sp, series)
         gr_text(GR.wctondc(xi, yi)..., str)
     end
 
-    if sp[:legend] == :inline && should_add_to_legend(series)
+    if sp[:legend_position] == :inline && should_add_to_legend(series)
         gr_set_font(legendfont(sp), sp)
-        gr_set_textcolor(plot_color(sp[:legendfontcolor]))
+        gr_set_textcolor(plot_color(sp[:legend_font_color]))
         if sp[:yaxis][:mirror]
             (_, i) = sp[:xaxis][:flip] ? findmax(x) : findmin(x)
             GR.settextalign(GR.TEXT_HALIGN_RIGHT, GR.TEXT_VALIGN_HALF)
diff --git a/src/backends/inspectdr.jl b/src/backends/inspectdr.jl
index e5db6d2b..a3064855 100644
--- a/src/backends/inspectdr.jl
+++ b/src/backends/inspectdr.jl
@@ -390,38 +390,33 @@ function _inspectdr_setupsubplot(sp::Subplot{InspectDRBackend})
 
     #Modify base layout of new object:
     l = plot.layout.defaults = deepcopy(InspectDR.defaults.plotlayout)
-    #IMPORTANT: Must deepcopy to ensure we don't change layouts of other plots.
-    #Works because plot uses defaults (not user-overwritten `layout.values`)
-    l.frame_canvas.fillcolor = _inspectdr_mapcolor(sp[:background_color_subplot])
-    l.frame_data.fillcolor = _inspectdr_mapcolor(sp[:background_color_inside])
-    l.frame_data.line.color = _inspectdr_mapcolor(xaxis[:foreground_color_axis])
-    l.font_title = InspectDR.Font(
-        sp[:titlefontfamily],
-        _inspectdr_mapptsize(sp[:titlefontsize]),
-        color = _inspectdr_mapcolor(sp[:titlefontcolor]),
-    )
-    #Cannot independently control fonts of axes with InspectDR:
-    l.font_axislabel = InspectDR.Font(
-        xaxis[:guidefontfamily],
-        _inspectdr_mapptsize(xaxis[:guidefontsize]),
-        color = _inspectdr_mapcolor(xaxis[:guidefontcolor]),
-    )
-    l.font_ticklabel = InspectDR.Font(
-        xaxis[:tickfontfamily],
-        _inspectdr_mapptsize(xaxis[:tickfontsize]),
-        color = _inspectdr_mapcolor(xaxis[:tickfontcolor]),
-    )
-    l.enable_legend = (sp[:legend] != :none)
-    #l.halloc_legend = 150 #TODO: compute???
-    l.font_legend = InspectDR.Font(
-        sp[:legendfontfamily],
-        _inspectdr_mapptsize(sp[:legendfontsize]),
-        color = _inspectdr_mapcolor(sp[:legendfontcolor]),
-    )
-    l.frame_legend.fillcolor = _inspectdr_mapcolor(sp[:background_color_legend])
-
-    #_round!() ensures values use integer spacings (looks better on screen):
-    InspectDR._round!(InspectDR.autofit2font!(l, legend_width = 10.0)) #10 "em"s wide
+        #IMPORTANT: Must deepcopy to ensure we don't change layouts of other plots.
+        #Works because plot uses defaults (not user-overwritten `layout.values`)
+        l.frame_canvas.fillcolor = _inspectdr_mapcolor(sp[:background_color_subplot])
+        l.frame_data.fillcolor = _inspectdr_mapcolor(sp[:background_color_inside])
+        l.frame_data.line.color = _inspectdr_mapcolor(xaxis[:foreground_color_axis])
+        l.font_title = InspectDR.Font(sp[:titlefontfamily],
+            _inspectdr_mapptsize(sp[:titlefontsize]),
+            color = _inspectdr_mapcolor(sp[:titlefontcolor])
+        )
+        #Cannot independently control fonts of axes with InspectDR:
+        l.font_axislabel = InspectDR.Font(xaxis[:guidefontfamily],
+            _inspectdr_mapptsize(xaxis[:guidefontsize]),
+            color = _inspectdr_mapcolor(xaxis[:guidefontcolor])
+        )
+        l.font_ticklabel = InspectDR.Font(xaxis[:tickfontfamily],
+            _inspectdr_mapptsize(xaxis[:tickfontsize]),
+            color = _inspectdr_mapcolor(xaxis[:tickfontcolor])
+        )
+        l.enable_legend = (sp[:legend_position] != :none)
+        #l.halloc_legend = 150 #TODO: compute???
+        l.font_legend = InspectDR.Font(sp[:legend_font_family],
+            _inspectdr_mapptsize(sp[:legend_font_pointsize]),
+            color = _inspectdr_mapcolor(sp[:legend_font_color])
+        )
+        l.frame_legend.fillcolor = _inspectdr_mapcolor(sp[:legend_background_color])
+        #_round!() ensures values use integer spacings (looks better on screen):
+        InspectDR._round!(InspectDR.autofit2font!(l, legend_width=10.0)) #10 "em"s wide
     return
 end
 
diff --git a/src/backends/pgfplotsx.jl b/src/backends/pgfplotsx.jl
index d5206e1e..c0ca103f 100644
--- a/src/backends/pgfplotsx.jl
+++ b/src/backends/pgfplotsx.jl
@@ -145,6 +145,8 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
             axis_opt = PGFPlotsX.Options(
                 "point meta max" => get_clims(sp)[2],
                 "point meta min" => get_clims(sp)[1],
+                "legend cell align" => "left",
+                "legend columns" => pgfx_legend_col(sp[:legend_position]),
                 "title" => sp[:title],
                 "title style" => PGFPlotsX.Options(
                     pgfx_get_title_pos(title_loc)...,
@@ -164,8 +166,9 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
             sp_width > 0 * mm ? push!(axis_opt, "width" => string(axis_width)) : nothing
             sp_height > 0 * mm ? push!(axis_opt, "height" => string(axis_height)) : nothing
             for letter in (:x, :y, :z)
-                if letter != :z || RecipesPipeline.is3d(sp)
-                    pgfx_axis!(axis_opt, sp, letter)
+                if letter != :z ||
+                   RecipesPipeline.is3d(sp)
+                   pgfx_axis!(axis_opt, sp, letter)
                 end
             end
             # Search series for any gradient. In case one series uses a gradient set
@@ -246,12 +249,20 @@ function (pgfx_plot::PGFPlotsXPlot)(plt::Plot{PGFPlotsXBackend})
                 extra_sp = wraptuple(extra_sp)
                 push!(axis, extra_sp...)
             end
-            if sp[:legendtitle] !== nothing
+            if sp[:legend_title] !== nothing
+                legtfont = legendtitlefont(sp)
                 push!(axis, PGFPlotsX.Options("\\addlegendimage{empty legend}" => nothing))
                 push!(
                     axis,
                     PGFPlotsX.LegendEntry(
-                        string("\\hspace{-.6cm}{\\textbf{", sp[:legendtitle], "}}"),
+                        PGFPlotsX.Options(
+                            "font" => pgfx_font(
+                                legtfont.pointsize,
+                                pgfx_thickness_scaling(sp),
+                            ),
+                            "text" => legtfont.color
+                        ),
+                        string("\\hspace{-.6cm}{\\textbf{", sp[:legend_title], "}}"),
                         false,
                     ),
                 )
@@ -376,11 +387,8 @@ function pgfx_add_series!(::Val{:path}, axis, series_opt, series, series_func, o
                     )
                 end
             end
-            if (
-                k == 1 &&
-                series[:subplot][:legend] != :none &&
-                pgfx_should_add_to_legend(series)
-            )
+            if i == 1 &&
+               series[:subplot][:legend_position] != :none && pgfx_should_add_to_legend(series)
                 pgfx_filllegend!(series_opt, opt)
             end
         end
@@ -653,7 +661,7 @@ function pgfx_add_series!(::Val{:xsticks}, axis, series_opt, series, series_func
 end
 
 function pgfx_add_legend!(axis, series, opt, i = 1)
-    if series[:subplot][:legend] != :none
+    if series[:subplot][:legend_position] != :none
         leg_entry = if opt[:label] isa AVec
             get(opt[:label], i, "")
         elseif opt[:label] isa AbstractString
@@ -800,30 +808,27 @@ function pgfx_get_legend_pos(v::Tuple{S,Symbol}) where {S<:Real}
 end
 
 function pgfx_get_legend_style(sp)
-    cstr = plot_color(sp[:background_color_legend])
+    cstr = plot_color(sp[:legend_background_color])
     a = alpha(cstr)
-    fg_alpha = alpha(plot_color(sp[:foreground_color_legend]))
+    fg_alpha = alpha(plot_color(sp[:legend_foreground_color]))
     legfont = legendfont(sp)
     PGFPlotsX.Options(
         pgfx_linestyle(
             pgfx_thickness_scaling(sp),
-            sp[:foreground_color_legend],
+            sp[:legend_foreground_color],
             fg_alpha,
             "solid",
         ) => nothing,
         "fill" => cstr,
         "fill opacity" => a,
-        "text opacity" => alpha(plot_color(sp[:legendfontcolor])),
-        "font" => pgfx_font(sp[:legendfontsize], pgfx_thickness_scaling(sp)),
-        "text" => plot_color(sp[:legendfontcolor]),
-        "cells" => PGFPlotsX.Options(
-            "anchor" => get(
-                (left = "west", right = "east", hcenter = "center"),
-                legfont.halign,
-                "west",
-            ),
+        "text opacity" => alpha(plot_color(sp[:legend_font_color])),
+        "font" => pgfx_font(
+            sp[:legend_font_pointsize],
+            pgfx_thickness_scaling(sp),
         ),
-        pgfx_get_legend_pos(sp[:legend])...,
+        "text" => plot_color(sp[:legend_font_color]),
+        "cells" => PGFPlotsX.Options("anchor" => get((left = "west", right = "east", hcenter = "center"), legfont.halign, "west")),
+        pgfx_get_legend_pos(sp[:legend_position])...,
     )
 end
 
@@ -949,6 +954,10 @@ function pgfx_linestyle(linewidth::Real, color, α = 1, linestyle = :solid)
     )
 end
 
+pgfx_legend_col(s::Symbol) = s == :horizontal ? -1 : 1
+pgfx_legend_col(n) = n
+
+
 function pgfx_linestyle(plotattributes, i = 1)
     lw = pgfx_thickness_scaling(plotattributes) * get_linewidth(plotattributes, i)
     lc = single_color(get_linecolor(plotattributes, i))
@@ -1444,9 +1453,8 @@ end
 # Set the (left, top, right, bottom) minimum padding around the plot area
 # to fit ticks, tick labels, guides, colorbars, etc.
 function _update_min_padding!(sp::Subplot{PGFPlotsXBackend})
-    leg = sp[:legend]
-    if leg in (:best, :outertopright, :outerright, :outerbottomright) ||
-       (leg isa Tuple && leg[1] >= 1)
+    leg = sp[:legend_position]
+    if leg in (:best, :outertopright, :outerright, :outerbottomright) || (leg isa Tuple && leg[1] >= 1)
         sp.minpad = (0mm, 0mm, 5mm, 0mm)
     else
         sp.minpad = (0mm, 0mm, 0mm, 0mm)
diff --git a/src/backends/plotly.jl b/src/backends/plotly.jl
index 5269ab14..79ab1f70 100644
--- a/src/backends/plotly.jl
+++ b/src/backends/plotly.jl
@@ -338,12 +338,12 @@ function plotly_layout(plt::Plot)
 end
 
 function plotly_add_legend!(plotattributes_out::KW, sp::Subplot)
-    plotattributes_out[:showlegend] = sp[:legend] != :none
-    legend_position = plotly_legend_pos(sp[:legend])
-    if sp[:legend] != :none
-        plotattributes_out[:legend] = KW(
-            :bgcolor => rgba_string(sp[:background_color_legend]),
-            :bordercolor => rgba_string(sp[:foreground_color_legend]),
+    plotattributes_out[:showlegend] = sp[:legend_position] != :none
+    legend_position = plotly_legend_pos(sp[:legend_position])
+    if sp[:legend_position] != :none
+        plotattributes_out[:legend_position] = KW(
+            :bgcolor  => rgba_string(sp[:legend_background_color]),
+            :bordercolor => rgba_string(sp[:legend_foreground_color]),
             :borderwidth => 1,
             :traceorder => "normal",
             :xanchor => legend_position.xanchor,
@@ -353,7 +353,7 @@ function plotly_add_legend!(plotattributes_out::KW, sp::Subplot)
             :x => legend_position.coords[1],
             :y => legend_position.coords[2],
             :title => KW(
-                :text => sp[:legendtitle] === nothing ? "" : string(sp[:legendtitle]),
+                :text => sp[:legend_title] === nothing ? "" : string(sp[:legend_title]),
                 :font => plotly_font(legendtitlefont(sp)),
             ),
         )
diff --git a/src/backends/pyplot.jl b/src/backends/pyplot.jl
index 0cb1ee40..0800ef8b 100644
--- a/src/backends/pyplot.jl
+++ b/src/backends/pyplot.jl
@@ -1566,7 +1566,7 @@ end
 py_legend_bbox(pos) = pos
 
 function py_add_legend(plt::Plot, sp::Subplot, ax)
-    leg = sp[:legend]
+    leg = sp[:legend_position]
     if leg != :none
         # gotta do this to ensure both axes are included
         labels = []
@@ -1667,35 +1667,23 @@ function py_add_legend(plt::Plot, sp::Subplot, ax)
                 loc = py_legend_pos(leg),
                 bbox_to_anchor = py_legend_bbox(leg),
                 scatterpoints = 1,
-                fontsize = py_thickness_scale(plt, sp[:legendfontsize]),
-                facecolor = py_color(sp[:background_color_legend]),
-                edgecolor = py_color(sp[:foreground_color_legend]),
-                framealpha = alpha(plot_color(sp[:background_color_legend])),
+                fontsize = py_thickness_scale(plt, sp[:legend_font_pointsize]),
+                facecolor = py_color(sp[:legend_background_color]),
+                edgecolor = py_color(sp[:legend_foreground_color]),
+                framealpha = alpha(plot_color(sp[:legend_background_color])),
                 fancybox = false,  # makes the legend box square
                 borderpad = 0.8,      # to match GR legendbox
             )
             frame = leg."get_frame"()
             frame."set_linewidth"(py_thickness_scale(plt, 1))
             leg."set_zorder"(1000)
-            if sp[:legendtitle] !== nothing
-                leg."set_title"(sp[:legendtitle])
-                PyPlot.plt."setp"(
-                    leg."get_title"(),
-                    color = py_color(sp[:legendtitlefontcolor]),
-                    family = sp[:legendtitlefontfamily],
-                    math_fontfamily = py_get_matching_math_font(sp[:legendtitlefontfamily]),
-                    fontsize = py_thickness_scale(plt, sp[:legendtitlefontsize]),
-                )
+            if sp[:legend_title] !== nothing
+                leg."set_title"(sp[:legend_title])
+                PyPlot.plt."setp"(leg."get_title"(), color = py_color(sp[:legend_title_font_color]), family = sp[:legend_title_font_family], fontsize = py_thickness_scale(plt, sp[:legend_title_font_pointsize]))
             end
 
             for txt in leg."get_texts"()
-                PyPlot.plt."setp"(
-                    txt,
-                    color = py_color(sp[:legendfontcolor]),
-                    family = sp[:legendfontfamily],
-                    math_fontfamily = py_get_matching_math_font(sp[:legendtitlefontfamily]),
-                    fontsize = py_thickness_scale(plt, sp[:legendfontsize]),
-                )
+                PyPlot.plt."setp"(txt, color = py_color(sp[:legend_font_color]), family = sp[:legend_font_family], fontsize = py_thickness_scale(plt, sp[:legend_font_pointsize]))
             end
         end
     end
diff --git a/src/backends/unicodeplots.jl b/src/backends/unicodeplots.jl
index a7697c10..448cebdf 100644
--- a/src/backends/unicodeplots.jl
+++ b/src/backends/unicodeplots.jl
@@ -54,7 +54,7 @@ function unicodeplots_rebuild(plt::Plot{UnicodePlotsBackend})
 
         o = UnicodePlots.Plot(x, y, _canvas_map[canvas_type]; kw...)
         for series in series_list(sp)
-            o = addUnicodeSeries!(sp, o, kw, series, sp[:legend] != :none)
+            o = addUnicodeSeries!(sp, o, kw, series, sp[:legend_position] != :none)
         end
 
         for ann in sp[:annotations]
diff --git a/src/components.jl b/src/components.jl
index 6786b98e..d2f89bc0 100644
--- a/src/components.jl
+++ b/src/components.jl
@@ -772,3 +772,20 @@ function extrema_plus_buffer(v, buffmult = 0.2)
     buffer = vdiff * buffmult
     vmin - buffer, vmax + buffer
 end
+
+### Legend
+
+@add_attributes subplot struct Legend
+    background_color = :match
+    foreground_color = :match
+    position = :best
+    title = nothing
+    font::Font = font(8)
+    title_font::Font = font(11)
+    column = 1
+end :match = (
+    :legend_font_family,
+    :legend_font_color,
+    :legend_title_font_family,
+    :legend_title_font_color,
+)
diff --git a/src/consts.jl b/src/consts.jl
new file mode 100644
index 00000000..c94f7aab
--- /dev/null
+++ b/src/consts.jl
@@ -0,0 +1,87 @@
+
+const _all_defaults = KW[_series_defaults, _plot_defaults, _subplot_defaults]
+
+const _initial_defaults = deepcopy(_all_defaults)
+const _initial_axis_defaults = deepcopy(_axis_defaults)
+
+# add defaults for the letter versions
+const _axis_defaults_byletter = KW()
+
+function reset_axis_defaults_byletter!()
+    for letter in (:x, :y, :z)
+        _axis_defaults_byletter[letter] = KW()
+        for (k, v) in _axis_defaults
+            _axis_defaults_byletter[letter][k] = v
+        end
+    end
+end
+reset_axis_defaults_byletter!()
+
+# to be able to reset font sizes to initial values
+const _initial_plt_fontsizes =
+    Dict(:plot_titlefontsize => _plot_defaults[:plot_titlefontsize])
+
+const _initial_sp_fontsizes = Dict(
+    :titlefontsize => _subplot_defaults[:titlefontsize],
+    :legend_font_pointsize => _subplot_defaults[:legend_font_pointsize],
+    :legend_title_font_pointsize => _subplot_defaults[:legend_title_font_pointsize],
+    :annotationfontsize => _subplot_defaults[:annotationfontsize],
+    :colorbar_tickfontsize => _subplot_defaults[:colorbar_tickfontsize],
+    :colorbar_titlefontsize => _subplot_defaults[:colorbar_titlefontsize],
+)
+
+const _initial_ax_fontsizes = Dict(
+    :tickfontsize  => _axis_defaults[:tickfontsize],
+    :guidefontsize => _axis_defaults[:guidefontsize],
+)
+
+const _initial_fontsizes =
+    merge(_initial_plt_fontsizes, _initial_sp_fontsizes, _initial_ax_fontsizes)
+
+const _internal_args =
+    [:plot_object, :series_plotindex, :markershape_to_add, :letter, :idxfilter]
+
+const _axis_args = sort(union(collect(keys(_axis_defaults))))
+const _series_args = sort(union(collect(keys(_series_defaults))))
+const _subplot_args = sort(union(collect(keys(_subplot_defaults))))
+const _plot_args = sort(union(collect(keys(_plot_defaults))))
+
+const _magic_axis_args = [:axis, :tickfont, :guidefont, :grid, :minorgrid]
+const _magic_subplot_args =
+    [:title_font, :legend_font, :legend_title_font, :plot_title_font, :colorbar_titlefont]
+const _magic_series_args = [:line, :marker, :fill]
+
+const _all_axis_args = sort(union([_axis_args; _magic_axis_args]))
+const _all_subplot_args = sort(union([_subplot_args; _magic_subplot_args]))
+const _all_series_args = sort(union([_series_args; _magic_series_args]))
+const _all_plot_args = _plot_args
+
+const _all_args = sort(union([
+    _all_axis_args
+    _all_subplot_args
+    _all_series_args
+    _all_plot_args
+]))
+
+# add all pluralized forms to the _keyAliases dict
+for arg in _all_args
+    add_aliases(arg, makeplural(arg))
+end
+
+# fill symbol cache
+for letter in (:x, :y, :z)
+    _attrsymbolcache[letter] = Dict{Symbol,Symbol}()
+    for k in _axis_args
+        # populate attribute cache
+        lk = Symbol(letter, k)
+        _attrsymbolcache[letter][k] = lk
+        # allow the underscore version too: xguide or x_guide
+        add_aliases(lk, Symbol(letter, "_", k))
+    end
+    for k in (_magic_axis_args..., :(_discrete_indices))
+        _attrsymbolcache[letter][k] = Symbol(letter, k)
+    end
+end
+
+# add all non_underscored forms to the _keyAliases
+add_non_underscore_aliases!(_keyAliases)
diff --git a/src/pipeline.jl b/src/pipeline.jl
index 9de412b7..3ab21814 100644
--- a/src/pipeline.jl
+++ b/src/pipeline.jl
@@ -23,7 +23,7 @@ function RecipesPipeline.warn_on_recipe_aliases!(
                 else
                     throw(ArgumentError("Invalid recipe type `$recipe_type`"))
                 end
-                @warn "Attribute alias `$k` detected in the $recipe_type recipe defined for the signature $signature_string. To ensure expected behavior it is recommended to use the default attribute `$dk`."
+                # @warn "Attribute alias `$k` detected in the $recipe_type recipe defined for the signature $signature_string. To ensure expected behavior it is recommended to use the default attribute `$dk`."
             end
             plotattributes[dk] = RecipesPipeline.pop_kw!(plotattributes, k)
         end
diff --git a/src/utils.jl b/src/utils.jl
index 55dddf8d..43fc98f1 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -660,7 +660,7 @@ function with(f::Function, args...; kw...)
         newdefs[:xticks] = nothing
         newdefs[:yticks] = nothing
         newdefs[:grid] = false
-        newdefs[:legend] = false
+        newdefs[:legend_position] = false
     end
 
     # dict to store old and new keyword args for anything that changes
@@ -995,21 +995,21 @@ titlefont(sp::Subplot) = font(;
 )
 
 legendfont(sp::Subplot) = font(;
-    family = sp[:legendfontfamily],
-    pointsize = sp[:legendfontsize],
-    valign = sp[:legendfontvalign],
-    halign = sp[:legendfonthalign],
-    rotation = sp[:legendfontrotation],
-    color = sp[:legendfontcolor],
+    family = sp[:legend_font_family],
+    pointsize = sp[:legend_font_pointsize],
+    valign = sp[:legend_font_valign],
+    halign = sp[:legend_font_halign],
+    rotation = sp[:legend_font_rotation],
+    color = sp[:legend_font_color],
 )
 
 legendtitlefont(sp::Subplot) = font(;
-    family = sp[:legendtitlefontfamily],
-    pointsize = sp[:legendtitlefontsize],
-    valign = sp[:legendtitlefontvalign],
-    halign = sp[:legendtitlefonthalign],
-    rotation = sp[:legendtitlefontrotation],
-    color = sp[:legendtitlefontcolor],
+    family = sp[:legend_title_font_family],
+    pointsize = sp[:legend_title_font_pointsize],
+    valign = sp[:legend_title_font_valign],
+    halign = sp[:legend_title_font_halign],
+    rotation = sp[:legend_title_font_rotation],
+    color = sp[:legend_title_font_color],
 )
 
 tickfont(ax::Axis) = font(;
diff --git a/test/test_axes.jl b/test/test_axes.jl
index cd184708..0d8a1526 100644
--- a/test/test_axes.jl
+++ b/test/test_axes.jl
@@ -65,6 +65,9 @@ end
 end
 
 @testset "axis-aliases" begin
+    @test haskey(Plots._keyAliases, :xguideposition)
+    @test haskey(Plots._keyAliases, :x_guide_position)
+    @test !haskey(Plots._keyAliases, :xguide_position)
     p = plot(1:2, xl = "x label")
     @test p[1][:xaxis][:guide] === "x label"
     p = plot(1:2, xrange = (0, 3))
diff --git a/test/test_defaults.jl b/test/test_defaults.jl
index 9ce50738..2b74a819 100644
--- a/test/test_defaults.jl
+++ b/test/test_defaults.jl
@@ -1,4 +1,4 @@
-using Plots, Test
+using Plots, Test, Colors
 
 const PLOTS_DEFAULTS = Dict(:theme => :wong2, :fontfamily => :palantino)
 Plots.__init__()
@@ -11,3 +11,60 @@ end
 
 empty!(PLOTS_DEFAULTS)
 Plots.__init__()
+
+@testset "Legend defaults" begin
+    p = plot()
+    @test p[1][:legend_font_family] == "sans-serif"
+    @test p[1][:legend_font_pointsize] == 8
+    @test p[1][:legend_font_halign] == :hcenter
+    @test p[1][:legend_font_valign] == :vcenter
+    @test p[1][:legend_font_rotation] == 0.0
+    @test p[1][:legend_font_color] == RGB{Colors.N0f8}(0.0,0.0,0.0)
+    @test p[1][:legend_position] == :best
+    @test p[1][:legend_title] == nothing
+    @test p[1][:legend_title_font_family] == "sans-serif"
+    @test p[1][:legend_title_font_pointsize] == 11
+    @test p[1][:legend_title_font_halign] == :hcenter
+    @test p[1][:legend_title_font_valign] == :vcenter
+    @test p[1][:legend_title_font_rotation] == 0.0
+    @test p[1][:legend_title_font_color] == RGB{Colors.N0f8}(0.0,0.0,0.0)
+    @test p[1][:legend_background_color] == RGBA{Float64}(1.0,1.0,1.0,1.0)
+    @test p[1][:legend_foreground_color] == RGB{Colors.N0f8}(0.0,0.0,0.0)
+end # testset
+
+@testset "Legend API" begin
+    p = plot(;
+        legendfontfamily = "serif",
+        legendfontsize = 12,
+        legendfonthalign = :left,
+        legendfontvalign = :top,
+        legendfontrotation = 1,
+        legendfontcolor = :red,
+        legend = :outertopleft,
+        legendtitle = "The legend",
+        legendtitlefontfamily = "helvetica",
+        legendtitlefontsize = 3,
+        legendtitlefonthalign = :right,
+        legendtitlefontvalign = :bottom,
+        legendtitlefontrotation = -5.2,
+        legendtitlefontcolor = :blue,
+        background_color_legend = :cyan,
+        foreground_color_legend = :green,
+    )
+    @test p[1][:legend_font_family] == "serif"
+    @test p[1][:legend_font_pointsize] == 12
+    @test p[1][:legend_font_halign] == :left
+    @test p[1][:legend_font_valign] == :top
+    @test p[1][:legend_font_rotation] == 1.0
+    @test p[1][:legend_font_color] == :red
+    @test p[1][:legend_position] == :outertopleft
+    @test p[1][:legend_title] == "The legend"
+    @test p[1][:legend_title_font_family] == "helvetica"
+    @test p[1][:legend_title_font_pointsize] == 3
+    @test p[1][:legend_title_font_halign] == :right
+    @test p[1][:legend_title_font_valign] == :bottom
+    @test p[1][:legend_title_font_rotation] == -5.2
+    @test p[1][:legend_title_font_color] == :blue
+    @test p[1][:legend_background_color] == RGBA{Float64}(0.0,1.0,1.0,1.0)
+    @test p[1][:legend_foreground_color] == RGBA{Float64}(0.0,0.5019607843137255,0.0,1.0)
+end # testset