Syntax highlighting uses light theme colors in dark mode, making string tokens (e.g. 'alice') hard to read

[LakshmanKishore]

Description

When the app is switched to dark mode, the syntax highlighting CSS remains the light (github) highlight.js theme. As a result, some tokens (e.g., string literals) have very low contrast against the dark background—for example, the value 'alice' in code blocks becomes hard to read.

Steps to reproduce

1. Open the app and click the dark mode toggle.
2. Paste or open a code block such as:

   name = 'alice'

3. Observe the string token color has poor contrast (see screenshot below).

Expected

Syntax highlighting should use colors suitable for the dark background (either by swapping to a dark highlight.js theme or by providing CSS overrides).

Proposed fix

• Update the theme toggle to swap the highlight.js stylesheet between the light and dark highlight.js themes, or
• Add dark-mode CSS overrides for .hljs-* token classes.

Environment

Web app, latest commit.

Screenshot

[ThisIs-Developer]

@LakshmanKishore , thanks for solving this issue on PR #38 . Appreciate this.