202_107: Fix python syntax color visibility in dark mode

[git-lakshy]

Issue :

In the dark theme, the syntax of Python becomes difficult to see.

What

To imrpove visbility updated the Python syntax highlighting color scheme in python-lang.scm.

Color Changes:

• Keywords: #309090 → #005CC5 (Deep Blue)
• Constants: #4040c0 → #D73A49 (Soft Red)
• Strings: dark grey → #22863A (Medium Green)
• Functions: #0000c0 → #6F42C1 (Muted Purple)
• Classes: #0000c0 → #B31D28 (Deep Red)
• Operators: #8b008b → #E36209 (Warm Orange)
• Brackets: #B02020 → #E36209 (Warm Orange)
• Comments: brown → #999999 (Neutral Gray)
• Errors: dark red → #CB2431 (Strong Red)
• Field Operator: #88888 → #999999 (Neutral Gray)
• Special Operators: orange → #E36209 (Warm Orange)
• Undefined: red → #999999 (Neutral Gray)

Python syntax is better visible on both light and dark themes with improved contrast and visual distinction between different syntax elements.

Screenshots

Previous :

After changes :

[Copilot]

Pull request overview

Updates TeXmacs’ Python plugin syntax-highlighting preference colors to improve readability/contrast in dark mode, and adds a short markdown note documenting the change.

Changes:

• Adjust Python syntax highlighting preference colors in python-lang.scm (keywords/constants/strings/operators/comments, etc.).
• Add a 202_107.md write-up describing the motivation and the new color scheme.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
TeXmacs/plugins/python/progs/code/python-lang.scm	Updates Python syntax highlighting color preferences for better visibility (especially in dark theme).
202_107.md	Adds a brief change note documenting the issue, color changes, and author/date.

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[Copilot]

syntax:python:none is used as the fallback color when a token type isn’t recognized by encode_color (e.g. operator_decoration such as @ is not in language.cpp’s color encoding map and therefore decodes to the none color). With this change, decorators will end up #999999 (same as comments), which reduces visual distinction. Consider mapping @ to an existing encoded operator class (like operator_special) in the Python operator feature list, or extend the core color encoding/decoding to support operator_decoration so it can have an intentional color.

Suggested change

	("syntax:python:none" "#999999" notify-python-syntax) ;; Neutral Gray
	("syntax:python:none" "#E36209" notify-python-syntax) ;; Warm Orange (fallback/operator-like)

[Copilot]

Typo/grammar: “To imrpove visbility …” should be “To improve visibility …”

Suggested change

	To imrpove visbility updated the Python syntax highlighting color scheme in `python-lang.scm`.
	To improve visibility, updated the Python syntax highlighting color scheme in `python-lang.scm`.