diff --git a/docs/example_generation.jl b/docs/example_generation.jl
index e2aa9df5..469e14d0 100644
--- a/docs/example_generation.jl
+++ b/docs/example_generation.jl
@@ -46,7 +46,7 @@ const examples = PlotExample[
               [
                 :(y = rand(100)),
                 :(plot(0:10:100,rand(11,4),lab="lines",w=3, palette=:grays, fill=(0.5,:auto))),
-                :(scatter!(y, zcolor=abs(y-.5), m=(:heat,0.8,stroke(3,:green)), ms=10*abs(y-0.5)+3, lab="grad"))
+                :(scatter!(y, zcolor=abs(y-.5), m=(:heat,0.8,stroke(1,:green)), ms=10*abs(y-0.5)+4, lab="grad"))
               ]),
   PlotExample("Global",
               "Change the guides/background/limits/ticks.  Convenience args `xaxis` and `yaxis` allow you to pass a tuple or value which will be mapped to the relevant args automatically.  The `xaxis` below will be replaced with `xlabel` and `xlims` args automatically during the preprocessing step. You can also use shorthand functions: `title!`, `xaxis!`, `yaxis!`, `xlabel!`, `ylabel!`, `xlims!`, `ylims!`, `xticks!`, `yticks!`",
diff --git a/src/backends/plotly.jl b/src/backends/plotly.jl
index 3771a439..778ea8be 100644
--- a/src/backends/plotly.jl
+++ b/src/backends/plotly.jl
@@ -214,6 +214,12 @@ function get_series_html(d::Dict)
     else
       hasline ? "lines" : "none"
     end
+    if d[:fillrange] == true || d[:fillrange] == 0
+      d_out[:fill] = "tozeroy"
+      d_out[:fillcolor] = webcolor(d[:fillcolor], d[:fillalpha])
+    elseif !(d[:fillrange] in (false, nothing))
+      warn("fillrange ignored... plotly only supports filling to zero. fillrange: $(d[:fillrange])")
+    end
     d_out[:x], d_out[:y] = x, y
 
   elseif lt == :bar
@@ -221,13 +227,24 @@ function get_series_html(d::Dict)
     d_out[:x], d_out[:y] = x, y
 
   elseif lt == :heatmap
-    d_out[:type] = "heatmap"
+    d_out[:type] = "histogram2d"
     d_out[:x], d_out[:y] = x, y
+    if isa(d[:nbins], Tuple)
+      xbins, ybins = d[:nbins]
+    else
+      xbins = ybins = d[:nbins]
+    end
+    d_out[:nbinsx] = xbins
+    d_out[:nbinsy] = ybins
 
-  elseif lt == :hist
+  elseif lt in (:hist, :density)
     d_out[:type] = "histogram"
     isvert = d[:orientation] in (:vertical, :v, :vert)
     d_out[isvert ? :x : :y] = y
+    d_out[isvert ? :nbinsx : :nbinsy] = d[:nbins]
+    if lt == :density
+      d_out[:histnorm] = "probability density"
+    end
 
   elseif lt == :contour
     d_out[:type] = "contour"
@@ -254,7 +271,7 @@ function get_series_html(d::Dict)
     d_out[:marker] = Dict(
         :symbol => get(_plotly_markers, d[:markershape], string(d[:markershape])),
         :opacity => d[:markeralpha],
-        :size => d[:markersize],
+        :size => 2 * d[:markersize],
         :color => webcolor(d[:markercolor], d[:markeralpha]),
         :line => Dict(
             :color => webcolor(d[:markerstrokecolor], d[:markerstrokealpha]),
diff --git a/src/backends/supported.jl b/src/backends/supported.jl
index 547d95e9..12fb9f65 100644
--- a/src/backends/supported.jl
+++ b/src/backends/supported.jl
@@ -431,8 +431,8 @@ supportedArgs(::PlotlyPackage) = [
     :background_color,
     :color_palette,
     :fillrange,
-    # :fillcolor,
-    # :fillalpha,
+    :fillcolor,
+    :fillalpha,
     :foreground_color,
     :group,
     :label,
@@ -451,7 +451,7 @@ supportedArgs(::PlotlyPackage) = [
     :markerstrokecolor,
     :markerstrokestyle,
     # :n,
-    # :nbins,
+    :nbins,
     # :nc,
     # :nr,
     # :pos,
@@ -474,6 +474,7 @@ supportedArgs(::PlotlyPackage) = [
     # :xflip,
     # :yflip,
     :z,
+    :zcolor,
     :tickfont,
     :guidefont,
     :legendfont,
@@ -482,7 +483,7 @@ supportedArgs(::PlotlyPackage) = [
   ]
 supportedAxes(::PlotlyPackage) = [:auto, :left]
 supportedTypes(::PlotlyPackage) = [:none, :path, :scatter, :steppre, :steppost,
-                                   :heatmap, :hist, :bar, :contour, :pie] #,, :sticks, :heatmap, :hexbin, :hist, :bar, :hline, :vline, :contour]
+                                   :heatmap, :hist, :density, :bar, :contour, :pie] #,, :sticks, :hexbin, :hline, :vline]
 supportedStyles(::PlotlyPackage) = [:auto, :solid, :dash, :dot, :dashdot]
 supportedMarkers(::PlotlyPackage) = [:none, :auto, :ellipse, :rect, :diamond, :utriangle, :dtriangle, :cross, :xcross,
                                      :pentagon, :hexagon, :octagon] #vcat(_allMarkers, Shape)
diff --git a/test/refimg/gadfly/ref22.png b/test/refimg/gadfly/ref22.png
new file mode 100644
index 00000000..6adf86bc
Binary files /dev/null and b/test/refimg/gadfly/ref22.png differ
diff --git a/test/refimg/gadfly/ref4.png b/test/refimg/gadfly/ref4.png
index 16e52b39..ce0109e4 100644
Binary files a/test/refimg/gadfly/ref4.png and b/test/refimg/gadfly/ref4.png differ