1. Install the Add-on: Download and install the extension from the Mozilla Add-ons store.
2. Enable for Your Gitea Instance: Navigate to your Gitea instance (e.g., https://gitea.example.com). Click the add-on icon in your browser toolbar. Select "Always Allow" to enable the add-on for your Gitea instance.
3. Refresh Your Gitea Page: Reload the page to see the Gruvbox theme applied automatically.
