ArthasMod

ArthasMod is a browser extension that customizes the ISY web UI with a dark, modern theme and quality-of-life tweaks.

What it does

• Applies a custom "ArthasMod" visual theme (colors, typography, cards, menus).
• Adds a third theme option in the profile settings alongside base light/dark modes.
• Improves timetable visuals (lesson colors, readability, sizing/spacing tweaks).
• Adds UI fixes for specific pages (e.g., absences/table alignment, sidebars, overlays).
• Injects small behavior enhancements via content scripts.

Main files

• manifest.json – extension config and permissions.
• content.js – DOM behavior, UI patching, theme mode logic.
• styles.css – theme styling and component overrides.
• background.js – background extension logic.
• main-world-cache.js – additional in-page cache/runtime helper logic.

Usage

1. Load the extension as an unpacked extension in your browser.
2. Open ISY.
3. In profile settings, select ArthasMod to enable the custom theme.