ChatGPT Material Dark Customizer

A Material Dark theme customizer for ChatGPT.

ChatGPT Material Dark Customizer transforms ChatGPT into a polished, customizable dark workspace with live theme controls, refined contrast, and less visual clutter. Designed for people who spend significant time in ChatGPT, it gives you direct control over the interface without requiring custom CSS, Stylus, or an external theme manager. Open the extension popup, adjust your theme with a live preview, save custom presets, and apply changes instantly across active ChatGPT tabs. Features • Customizable Material Dark interface for ChatGPT • Live controls for message bubbles, assistant responses, text, links, headings, code accents, borders, and backgrounds • Gradient backgrounds with adjustable start color, end color, and angle • 15+ Built-in Presets including : Material Dark, OLED Black, Ocean, Forest, Cursor, Vscode, Matrix, Rose and Nebula Violet and more! • Custom named presets for saving your own themes • Wide Mode for a more spacious conversation layout • Adjustable message composer height • Optional assistant response borders • Optional sidebar backdrop effects • Hide side clutter and footer notices • Optional no wrap sidebar titles • Theme settings and custom presets sync across signed-in Chrome browsers Designed for Daily Use ChatGPT Material Dark lets you customize the parts of the interface you see most: the chat canvas, input area, message bubbles, assistant output, borders, links, headings, and accent colors. Choose OLED Black for a minimal, low glare workspace. Use Deep Ocean, Deep Forest, or Nebula Violet for a softer themed appearance or build and save a theme of your own! Changes appear live, making it easy to experiment with colors and gradients until the interface feels right. Privacy First • No analytics • No tracking • No advertising • No personal data collection • No selling or sharing of personal information • Chat and prompt content is never collected, stored, or transmitted Your preferences are stored through Chrome’s sync storage so they can follow you across signed-in Chrome browsers. Access to supported ChatGPT and OpenAI pages is used only to apply your selected theme and layout settings. ChatGPT Material Dark Customizer is an independent extension and is not affiliated with or endorsed by OpenAI.