Merge pull request #3234 from daschw/spy

fix defaults in spy recipe

src/recipes.jl

@@ -1520,14 +1520,10 @@ end
     yflip := true
     aspect_ratio := 1
     rs, cs, zs = Plots.findnz(z.surf)
-    xlims := ignorenan_extrema(cs)
-    ylims := ignorenan_extrema(rs)
-    if plotattributes[:markershape] == :none
-        markershape := :circle
-    end
-    if plotattributes[:markersize] == default(:markersize)
-        markersize := 1
-    end
+    xlims := widen(ignorenan_extrema(cs)..., get(plotattributes, :xscale, :identity))
+    ylims := widen(ignorenan_extrema(rs)..., get(plotattributes, :yscale, :identity))
+    markershape --> :circle
+    markersize --> 1
     markerstrokewidth := 0
     if length(unique(zs)) == 1
         seriescolor --> :black