GPThemes - ChatGPT Widescreen, Fonts & Color

Tracking since Apr 16, 2026.

Changelog

• May 14, 2026
  description

  📝 FEATURES 📝
        • 🎨 CUSTOM ACCENT COLORS – Choose any accent color with a live preview
        • 📐 ADJUSTABLE LAYOUT – Resize chat & chatbox widths for better readability
        • ✍️ TYPOGRAPHY CONTROL – Customize font family, size, line height, and spacing
        • 💬 CHAT BUBBLES – Toggle bubbles for better message distinction
        • 🌓 MODERN THEME – Light, Dark, and AMOLED-friendly Black mode
        • 🪟 DISTRACTION FREE VIEW – Hide disruptive elements like the header, footer and upgrade chip to maximize screen space
        • ⬆️ EXPAND PROMPT BOX – Increase the height of the chatbox for more typing room
        • ⬇️ REPOSITION SCROLLDOWN BUTON – Adjust horizontal alignment for easy access
        • 🚀 QUICK THEME SWITCHER – Floating button for instant theme changes
        • 🪟 SPACIOUS & CLEAN UI – Comfortable chatting with reduced clutter
        • ✨ SMOOTH ANIMATIONS – Subtle feedback for a polished experience
        • 📱 MOBILE FRIENDLY – Customize ChatGPT on your phone browser too. Available for Firefox Android and Cromite (open-source Chromium-based browser for Android)
  
  
  🔒 PERMISSIONS EXPLAINED 🔒
     • Storage: To save your theme preferences locally on your device.
     • ChatGPT access: To apply your custom themes on "chat.openai.com" and "chatgpt.com"
  
  GPThemes believe in transparency. All settings are stored locally on your machine. It does not collect any personal data. You can find the extension's source code here : https://github.com/itsmartashub/GPThemes
  
  
  ⚠️COMPATIBILITY ⚠️
     • GPThemes is designed to provide customization experience for the core ChatGPT interface. It is optimized to work with free accounts and key features.
     • While the extension will likely function with a Plus subscription and Pro models, some of its styling may not be fully optimized for the advanced UI elements or features unique to that version. 
     • The extension is built to work with all languages, but its visual appearance is currently fine-tuned for English. I'm actively removing English-specific selectors in favor of more multilingual methods with almost every update.
     • Regular updates to maintain compatibility with ChatGPT changes. I appreciate your patience during any brief disruptions.
  
  
  🧵 HOW TO 🧵
     1️⃣ Install the GPThemes.
     2️⃣ On ChatGPT, there should be floating palette button (top-right) — click it to switch between Light, Dark, AMOLED, or open ⚙️ Settings to customize Colors, Fonts, and Layout.
     3️⃣ Pin the extension's icon to your browser toolbar (if it's not already).
     4️⃣ Click the icon to open the popup.
     5️⃣ Use the toggle in the popup's top-right to show or hide the floating palette button on the ChatGPT page.
  
  
  💌 SUPPORT & KEEP IT ALIVE 💌 
     • 🍵 If you can afford it and find GPThemes valuable, you can support its development with a pay-what-you-want contribution on KO-FI. Even small contributions help keep it alive, up-to-date and accessible.
  
  🔗  https://ko-fi.com/http417
  
  
  🤝 FEEDBACK 🤝 
     • If you encounter persistent issues or have suggestions for improvement, please feel free to open an issue on GitHub or contact me via email. Your feedback is invaluable and helps me identify and resolve problems more effectively.
  
  🔗 https://github.com/itsmartashub/GPThemes/issues
  📩 [email protected]
  
  
  Elevate your ChatGPT experience with GPThemes - where functionality meets style

  📝 FEATURES 📝
        • 🎨 CUSTOM ACCENT COLORS – Choose any accent color with a live preview
        • 📐 ADJUSTABLE LAYOUT – Resize chat & chatbox widths for better readability
        • ✍️ TYPOGRAPHY CONTROL – Customize font family, size, line height, and spacing
        • 💬 CHAT BUBBLES – Toggle bubbles for better message distinction
        • 🌓 MODERN THEME – Light, Dark, and AMOLED-friendly Black mode
        • 🪟 DISTRACTION FREE VIEW – Hide disruptive elements like the header, footer and upgrade chip to maximize screen space
        • ⬆️ EXPAND PROMPT BOX – Increase the height of the chatbox for more typing room
        • 🚀 QUICK THEME SWITCHER – Floating button for instant theme changes
        • 🪟 SPACIOUS & CLEAN UI – Comfortable chatting with reduced clutter
        • ✨ SMOOTH ANIMATIONS – Subtle feedback for a polished experience
        • 📱 MOBILE FRIENDLY – Customize ChatGPT on your phone browser too. Available for Firefox Android and Cromite (open-source Chromium-based browser for Android)
  
  
  🔒 PERMISSIONS EXPLAINED 🔒
     • Storage: To save your theme preferences locally on your device.
     • ChatGPT access: To apply your custom themes on "chat.openai.com" and "chatgpt.com"
  
  GPThemes believe in transparency. All settings are stored locally on your machine. It does not collect any personal data. You can find the extension's source code here : https://github.com/itsmartashub/GPThemes
  
  
  ⚠️COMPATIBILITY ⚠️
     • GPThemes is designed to provide customization experience for the core ChatGPT interface. It is optimized to work with free accounts and key features.
     • While the extension will likely function with a Plus subscription and Pro models, some of its styling may not be fully optimized for the advanced UI elements or features unique to that version. 
     • The extension is built to work with all languages, but its visual appearance is currently fine-tuned for English. I'm actively removing English-specific selectors in favor of more multilingual methods with almost every update.
     • Regular updates to maintain compatibility with ChatGPT changes. I appreciate your patience during any brief disruptions.
  
  
  🧵 HOW TO 🧵
     1️⃣ Install the GPThemes.
     2️⃣ On ChatGPT, there should be floating palette button (top-right) — click it to switch between Light, Dark, AMOLED, or open ⚙️ Settings to customize Colors, Fonts, and Layout.
     3️⃣ Pin the extension's icon to your browser toolbar (if it's not already).
     4️⃣ Click the icon to open the popup.
     5️⃣ Use the toggle in the popup's top-right to show or hide the floating palette button on the ChatGPT page.
  
  
  💌 SUPPORT & KEEP IT ALIVE 💌 
     • 🍵 If you can afford it and find GPThemes valuable, you can support its development with a pay-what-you-want contribution on KO-FI. Even small contributions help keep it alive, up-to-date and accessible.
  
  🔗  https://ko-fi.com/http417
  
  
  🤝 FEEDBACK 🤝 
     • If you encounter persistent issues or have suggestions for improvement, please feel free to open an issue on GitHub or contact me via email. Your feedback is invaluable and helps me identify and resolve problems more effectively.
  
  🔗 https://github.com/itsmartashub/GPThemes/issues
  📩 [email protected]
  
  
  Elevate your ChatGPT experience with GPThemes - where functionality meets style

• May 14, 2026
  short_description

  Redesign ChatGPT: custom colors, fonts & layouts — widescreen mode, width sliders, expandable chatbox, hide header/footer & more.

  Redesign ChatGPT: custom color, fonts & layouts — widescreen mode, chat bubbles, expandable chatbox, hide header/footer & more

• May 14, 2026
  name

  GPThemes - ChatGPT Customization & Tweaks

  GPThemes - ChatGPT Widescreen, Fonts & Color

Permissions & access

Permissions

storage

Host access

https://chat.openai.com/*, https://chatgpt.com/*

Screenshots

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