Theme Switcher for Claude by Антон Нейрых

Quick theme switcher and editor for claude.ai. Brings back the classic palette. No network, no data collection.

About this extension

Miss the old look of Claude? Theme Switcher for Claude brings it back in one click — and lets you create your own themes.

Modes: Follow Claude / Light / Dark, with a separate theme for each. Toggle instantly with Alt+Shift+T.
Classic Dark and Classic Light: Claude's palette from before the October 2026 update, pixel-exact.
Presets: Warm Dark/Light (2025), Deep Black for OLED screens, and the current Claude themes.
Theme editor: 16 colors (backgrounds, text, lines, accents) with opacity and a live preview. Changes appear in open Claude tabs immediately.
Import and export themes as JSON.
No flash of the wrong theme when the page loads.
9 languages, switchable inside the extension.

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