diff --git a/docs/example_generation.jl b/docs/example_generation.jl
index 1bb9fc0f..75157637 100644
--- a/docs/example_generation.jl
+++ b/docs/example_generation.jl
@@ -2,6 +2,7 @@
 module PlotExamples
 
 using Plots
+using Colors
 
 const DOCDIR = Pkg.dir("Plots") * "/docs"
 const IMGDIR = Pkg.dir("Plots") * "/img"
@@ -26,7 +27,7 @@ const examples = PlotExample[
               :(plot(0:0.01:4π, [sin,cos]))),
   PlotExample("Global",
               "Change the guides/background without a separate call.",
-              :(plot(rand(10); title="TITLE", xlabel="XLABEL", ylabel="YLABEL", background_color=:red))),
+              :(plot(rand(10); title="TITLE", xlabel="XLABEL", ylabel="YLABEL", background_color = RGB(0.5, 0.5, 0.5)))),
   PlotExample("Vectors",
               "Plot multiple series with different numbers of points.",
               :(plot(Vector[rand(10), rand(20)]; marker=:ellipse, markersize=8))),
@@ -40,7 +41,7 @@ function generate_markdown(pkgname::Symbol)
 
   # set up the plotter, and don't show the plots by default
   plotter!(pkgname)
-
+  plotDefault!(:show, false)
 
   # open the markdown file
   md = open("$DOCDIR/$(pkgname)_examples.md", "w")
@@ -56,10 +57,11 @@ function generate_markdown(pkgname::Symbol)
       imgname = "$(pkgname)_example_$i.png"
       savepng("$IMGDIR/$imgname")
 
+      # write out the header, description, code block, and image link
       write(md, "### $(example.header)\n\n")
       write(md, "$(example.desc)\n\n")
       write(md, "```julia\n$(string(example.expr))\n```\n\n")
-      write(md, "![](../$imgname)\n\n")
+      write(md, "![](../img/$imgname)\n\n")
 
     catch ex
       # TODO: put error info into markdown?
diff --git a/docs/gadfly_examples.md b/docs/gadfly_examples.md
index 1656fb14..b8168d3d 100644
--- a/docs/gadfly_examples.md
+++ b/docs/gadfly_examples.md
@@ -6,17 +6,27 @@ A simple line plot of the 3 columns.
 plot(rand(100,3))
 ```
 
-![](../gadfly_example_1.png)
+![](../img/gadfly_example_1.png)
+
+### Functions
+
+Plot multiple functions
+
+```julia
+plot(0:0.01:4π,[sin,cos])
+```
+
+![](../img/gadfly_example_2.png)
 
 ### Global
 
 Change the guides/background without a separate call.
 
 ```julia
-plot(rand(10); title="TITLE",xlabel="XLABEL",ylabel="YLABEL",background_color=:red)
+plot(rand(10); title="TITLE",xlabel="XLABEL",ylabel="YLABEL",background_color=RGB(0.5,0.5,0.5))
 ```
 
-![](../gadfly_example_3.png)
+![](../img/gadfly_example_3.png)
 
 ### Vectors
 
@@ -26,7 +36,7 @@ Plot multiple series with different numbers of points.
 plot(Vector[rand(10),rand(20)]; marker=:ellipse,markersize=8)
 ```
 
-![](../gadfly_example_4.png)
+![](../img/gadfly_example_4.png)
 
 ### Vectors w/ pluralized args
 
@@ -36,5 +46,5 @@ Mix arguments that apply to all series with arguments unique to each series.
 plot(Vector[rand(10),rand(20)]; marker=:ellipse,markersize=8,markercolors=[:red,:blue])
 ```
 
-![](../gadfly_example_5.png)
+![](../img/gadfly_example_5.png)
 
diff --git a/docs/qwt_examples.md b/docs/qwt_examples.md
index ec24bea2..2372bfa3 100644
--- a/docs/qwt_examples.md
+++ b/docs/qwt_examples.md
@@ -6,17 +6,27 @@ A simple line plot of the 3 columns.
 plot(rand(100,3))
 ```
 
-![](../qwt_example_1.png)
+![](../img/qwt_example_1.png)
+
+### Functions
+
+Plot multiple functions
+
+```julia
+plot(0:0.01:4π,[sin,cos])
+```
+
+![](../img/qwt_example_2.png)
 
 ### Global
 
 Change the guides/background without a separate call.
 
 ```julia
-plot(rand(10); title="TITLE",xlabel="XLABEL",ylabel="YLABEL",background_color=:red)
+plot(rand(10); title="TITLE",xlabel="XLABEL",ylabel="YLABEL",background_color=RGB(0.5,0.5,0.5))
 ```
 
-![](../qwt_example_3.png)
+![](../img/qwt_example_3.png)
 
 ### Vectors
 
@@ -26,7 +36,7 @@ Plot multiple series with different numbers of points.
 plot(Vector[rand(10),rand(20)]; marker=:ellipse,markersize=8)
 ```
 
-![](../qwt_example_4.png)
+![](../img/qwt_example_4.png)
 
 ### Vectors w/ pluralized args
 
@@ -36,5 +46,5 @@ Mix arguments that apply to all series with arguments unique to each series.
 plot(Vector[rand(10),rand(20)]; marker=:ellipse,markersize=8,markercolors=[:red,:blue])
 ```
 
-![](../qwt_example_5.png)
+![](../img/qwt_example_5.png)
 
diff --git a/img/gadfly_example_1.png b/img/gadfly_example_1.png
index 0e78cf2d..0f15cea1 100644
Binary files a/img/gadfly_example_1.png and b/img/gadfly_example_1.png differ
diff --git a/img/gadfly_example_2.png b/img/gadfly_example_2.png
new file mode 100644
index 00000000..db8d3723
Binary files /dev/null and b/img/gadfly_example_2.png differ
diff --git a/img/gadfly_example_3.png b/img/gadfly_example_3.png
index dbb41fd2..e0e5216c 100644
Binary files a/img/gadfly_example_3.png and b/img/gadfly_example_3.png differ
diff --git a/img/gadfly_example_4.png b/img/gadfly_example_4.png
index e11b7a91..3aad05b9 100644
Binary files a/img/gadfly_example_4.png and b/img/gadfly_example_4.png differ
diff --git a/img/gadfly_example_5.png b/img/gadfly_example_5.png
index 6ec63145..8b810f04 100644
Binary files a/img/gadfly_example_5.png and b/img/gadfly_example_5.png differ
diff --git a/img/qwt_example_1.png b/img/qwt_example_1.png
index 8a19bc15..c71f3b8d 100644
Binary files a/img/qwt_example_1.png and b/img/qwt_example_1.png differ
diff --git a/img/qwt_example_2.png b/img/qwt_example_2.png
new file mode 100644
index 00000000..910b8847
Binary files /dev/null and b/img/qwt_example_2.png differ
diff --git a/img/qwt_example_3.png b/img/qwt_example_3.png
index 4691cc91..5975dd46 100644
Binary files a/img/qwt_example_3.png and b/img/qwt_example_3.png differ
diff --git a/img/qwt_example_4.png b/img/qwt_example_4.png
index f337eedf..41dd7207 100644
Binary files a/img/qwt_example_4.png and b/img/qwt_example_4.png differ
diff --git a/img/qwt_example_5.png b/img/qwt_example_5.png
index 68d3e077..82565340 100644
Binary files a/img/qwt_example_5.png and b/img/qwt_example_5.png differ
diff --git a/src/args.jl b/src/args.jl
index b03c12be..cd569e3d 100644
--- a/src/args.jl
+++ b/src/args.jl
@@ -39,6 +39,7 @@ PLOT_DEFAULTS[:legend] = true
 # PLOT_DEFAULTS[:background_color] = nothing
 PLOT_DEFAULTS[:xticks] = true
 PLOT_DEFAULTS[:yticks] = true
+PLOT_DEFAULTS[:size] = (600,400)
 
 # TODO: x/y scales
 
diff --git a/src/plot.jl b/src/plot.jl
index 448b2702..4eb1cc96 100644
--- a/src/plot.jl
+++ b/src/plot.jl
@@ -141,6 +141,7 @@ function plot!(pkg::PlottingPackage, plt::Plot, x::AMat, y::AMat; kw...)
 end
 
 function plot!(pkg::PlottingPackage, plt::Plot, x::AVec, f::Function; kw...)          # one line, y = f(x)
+  plt.n += 1
   plot!(pkg, plt; x = x, y = map(f,x), getPlotKeywordArgs(kw, 1, plt)...)
 end
 
@@ -153,13 +154,13 @@ function plot!(pkg::PlottingPackage, plt::Plot, x::AMat, f::Function; kw...)
   plt
 end
 
-function plot!(pkg::PlottingPackage, plt::Plot, x::AVec, fs::AVec{Function}; kw...)   # multiple lines, yᵢⱼ = fⱼ(xᵢ)
-  for i in 1:length(fs)
-    plt.n += 1
-    plot!(pkg, plt; x = x, y = map(fs[i], x), getPlotKeywordArgs(kw, i, plt)...)
-  end
-  plt
-end
+# function plot!(pkg::PlottingPackage, plt::Plot, x::AVec, fs::AVec{Function}; kw...)   # multiple lines, yᵢⱼ = fⱼ(xᵢ)
+#   for i in 1:length(fs)
+#     plt.n += 1
+#     plot!(pkg, plt; x = x, y = map(fs[i], x), getPlotKeywordArgs(kw, i, plt)...)
+#   end
+#   plt
+# end
 
 function plot!(pkg::PlottingPackage, plt::Plot, y::AVec; kw...)                 # multiple lines, each with x = 1:length(y[i])
   for i in 1:length(y)
@@ -171,9 +172,14 @@ end
 
 function plot!{T<:Real}(pkg::PlottingPackage, plt::Plot, x::AVec{T}, y::AVec; kw...)        # multiple lines, will assert length(x) == length(y[i])
   for i in 1:length(y)
-    @assert length(x) == length(y[i])
-    plt.n += 1
-    plot!(pkg, plt; x = x, y = y[i], getPlotKeywordArgs(kw, i, plt)...)
+    if typeof(y[i]) <: AbstractVector
+      @assert length(x) == length(y[i])
+      plt.n += 1
+      plot!(pkg, plt; x = x, y = y[i], getPlotKeywordArgs(kw, i, plt)...)
+    elseif typeof(y[i]) == Function
+      plt.n += 1
+      plot!(pkg, plt; x = x, y = map(y[i], x), getPlotKeywordArgs(kw, 1, plt)...)
+    end
   end
   plt
 end