fix gradient scatter plot

src/backends/pgfplotsx.jl

@@ -364,7 +364,7 @@ end
 
 function pgfx_linestyle(plotattributes, i = 1)
     lw = pgfx_thickness_scaling(plotattributes) * get_linewidth(plotattributes, i)
-    lc = get_linecolor(plotattributes, i)
+    lc = single_color(get_linecolor(plotattributes, i))
     la = get_linealpha(plotattributes, i)
     ls = get_linestyle(plotattributes, i)
     return pgfx_linestyle(lw, lc, la, ls)

test/test_pgfplotsx.jl

@@ -111,6 +111,6 @@ end
                              x + y
                          end), color=:bluesreds, legend=false)
          plot(p1, p2)
-         # TODO: handle gradients as color
+         # TODO: questionable tiling
      end # testset
 end # testset