Add ANSI color for "brown"

[davidbrochart]

Type of changes

• Bug fix
• New feature
• Documentation / docstrings
• Tests
• Other

AI?

• AI was used to generate this PR

AI generated PRs may be accepted, but only if @willmcgugan has responded on an issue or discussion.

Checklist

• I've run the latest black with default args on new code.
• I've updated CHANGELOG.md and CONTRIBUTORS.md where appropriate (see note about typos above).
• I've added tests for new code.
• I accept that @willmcgugan may be pedantic in the code review.

Description

Please describe your changes here.

Important: Link to an issue or discussion regarding these changes.

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.87%. Comparing base (14a47c9) to head (8eeaa05).
⚠️ Report is 4 commits behind head on master.
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Additional details and impacted files

@@           Coverage Diff           @@
##           master    #4025   +/-   ##
=======================================
  Coverage   97.87%   97.87%           
=======================================
  Files          96       96           
  Lines        8370     8370           
=======================================
  Hits         8192     8192           
  Misses        178      178           

Flag	Coverage Δ
unittests	97.87% <ø> (ø)

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[TomJGooding]

Is this definitely brown or a variant of dark orange?

[davidbrochart]

Right, according to this the code should be 94.

[TomJGooding]

I wonder what these ANSI color names were based on. It looks like 94 is already assigned to "orange4".

I tried searching for some "official" reference without much luck - the closest I found was this list of Xterm colors: https://www.ditig.com/256-colors-cheat-sheet This seems to match the Rich colors at least from a quick check. But it looks like there isn't a "brown"!

[davidbrochart]

It looks like 94 is already assigned to "orange4".

Damn, well I guess I can just remap "brown" to "orange4" then.
There might not be any official reference for ANSI colors, my "brown" came from pyte, and it looks like it mostly comes from console_codes(4).
Thanks for the review @TomJGooding!