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I'm trying to create a dark theme and I'm using the ReverseColor stylesheet as a base. I have most things changed to my liking and fixed some of the problems with ReverseColor. However, I cannot find a way to separately style the pop-up box you get when you do Esc name Esc. This thing enter image description here

It is almost illegible under ReverseColor.

enter image description here

How do I change the font and background colour of this? The auto-completion popup for functions seems to be unaffected, so it probably inherits its style from something else. Bonus points if you could tell me how to change that also.

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    $\begingroup$ Yes, there are a bunch of issues with the Reverse Color stylesheet. $\endgroup$
    – M.R.
    Jan 16, 2019 at 20:25
  • $\begingroup$ Which is why I'm trying to create one fixing as many issues as I can :). For anyone in the future doing the same thing, if you want to fix the usage information you get from ?,??, Information etc. you need to adjust the PrintUsage and Info* styles $\endgroup$
    – void life
    Jan 16, 2019 at 20:39

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You are looking for "CodeAssistCharCompletion" style. Add or modify this for your stylesheet:

Cell[ StyleData["CodeAssistCharCompletion"]
, FontColor->GrayLevel[0]
]

I am not sure you can do anything about background because it looks like a bitmap rather than a plain Background->color setting. There's probably something in FEBitmaps directory but it will change global setting of that menu.

Anyway you can find this and related styles in:

Core.nb / Styles for Mathematica System-specific Elements / Code Assist Styles

enter image description here

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  • $\begingroup$ Great. Thank you so much. I too was digging through Core.nb, but was somehow convinced that it was a dialogbox related style. $\endgroup$
    – void life
    Jan 16, 2019 at 19:11
  • $\begingroup$ Wow how did you find this trash? (A+) Search for "CodeAssist*" in Core.nb and friends? $\endgroup$
    – b3m2a1
    Jan 16, 2019 at 19:51
  • $\begingroup$ @b3m2a1 finding the final section was quite straightforward but first time I approached it I assumed it won't be there. Then I started to change font after font to Red till I hit it. $\endgroup$
    – Kuba ♦
    Jan 16, 2019 at 20:57

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