I'd like to make code Cells have a specific background image. I know you can do this for Notebooks, but what about Cells?

This simple test fails:

ConvertImageToFullyScaledNinePatch[img_] := 
  Module[{paddedImage = ImagePad[img, 1, Black]}, 
    Flatten[Outer[List, {0, #1}, {0, #2}] & @@ 
       ImageDimensions[paddedImage], 1] -> White]];

img = ConvertImageToFullyScaledNinePatch[
   ExampleData[{"TestImage", "JellyBeans"}]];

CellPrint@Cell["test", "Code", BackgroundAppearance -> img]
  • $\begingroup$ Without a link to the earlier Q&A ConvertImageToFullyScaledNinePatch is without context so I added a link. I hope you don't mind. $\endgroup$ – Mr.Wizard May 20 '16 at 17:41
  • $\begingroup$ Ah, I meant to include that, thanks! $\endgroup$ – M.R. May 20 '16 at 17:42

Probably not ideal, but using OverlayBox (undocumented) can get you something:

img = ConvertImageToFullyScaledNinePatch[

   OverlayBox[{ToBoxes[img], "test"}, Alignment -> Center]], "Code", 
  CellFrameMargins -> 0, CellMargins -> 0, PageWidth -> 1600]]

Mathematica graphics

  • 2
    $\begingroup$ Since it is not editable anyway you can use documented Overlay. $\endgroup$ – Kuba May 20 '16 at 18:36
  • $\begingroup$ @Kuba You are right of course, no need to get all complicated. $\endgroup$ – chuy May 20 '16 at 18:41
  • $\begingroup$ in reflection this is kind of a bad solution, but maybe someone can use it find a better one. $\endgroup$ – chuy May 20 '16 at 22:09

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