Claude Studio — RTL, Fonts & Themes

Make Claude truly yours. Claude Studio restyles claude.ai and claude.com with first-class right-to-left support, beautiful multilingual fonts, professional typography, and rich theming — all from a clean popup with a live preview.

Whether you chat in Persian, Arabic, Hebrew, or Urdu, switch languages mid-conversation, or simply want Claude to look and read better, Claude Studio gives you precise control — without changing anything you don't want to touch.

🌐 Right-to-left, done right • Full RTL layout for Claude's interface and messages • "Auto" direction sets each message — even each block — from its own content, perfect for bilingual chats • Math (KaTeX) and code always stay left-to-right and intact, so nothing breaks • Localized digits (e.g. ۱۲۳) in conversations and the chat list, while your input and code stay untouched

🔤 Fonts & typography • 50+ curated fonts, grouped by script — pick separate fonts for body text, headings, and code • Fine-tune weight, size, line height, letter spacing, word spacing, and paragraph spacing • Text alignment: right, left, center, or justify • Limit the reading width for comfortable reading on wide screens

🎨 Themes & colors • Light, Dark, and a true Black theme • Set Claude's accent/highlight color and the code-box theme to match your taste

🎯 Precise scope • Choose exactly what gets styled — Claude's replies, your messages, the composer, and the chat list — each independently

⚙️ Power-user tools • Save, apply, and manage presets • Add your own custom CSS • Export and import all your settings • Keyboard shortcuts to toggle the extension and open settings • A 25-language interface with a live preview of every change

🔒 Private by design • No accounts, no tracking, no data collection — your settings stay in your browser. (Fonts load on demand from Google Fonts.)

💻 Open source • Free and open source — view the code, report issues, or contribute on GitHub: https://github.com/ILYAGVC/Claude-Studio (MIT License).

——— Claude Studio is an independent, unofficial extension. It is not affiliated with, endorsed by, or sponsored by Anthropic. "Claude" is a trademark of Anthropic.