Per-Site CSS Injector от matt chavoshi

The ultimate Custom CSS Injector extension allows you to effortlessly change the look and feel of any website by saving persistent custom styles for each domain. Key Features: * Site-Specific Styling: The CSS you define is only active for that specific domain (e.g., styles for grok.com will not affect gemini.google.com).
* Persistent Storage: Your styles are saved directly in the browser and are automatically applied every time you visit the site.
* Easy-to-Use: Simply click the extension icon, enter your desired CSS code, and hit the save button.
* Set It and Forget It: Once saved, you never have to repeat the process.