Adwaita Accent Tint

A lightweight, native-feeling CSS theme for GNOME 49+ (GTK4/Libadwaita) that subtly blends your system accent color into the application backgrounds.

This theme uses GTK's mix() function against the official Libadwaita base hex codes. The result is a 7.5% tint that preserves all native shadows, card depths, and high-contrast elements.

https://github.com/user-attachments/assets/d747ee28-6757-4348-bf28-1a60e32ef28a

Installation

1. Apply to Native Apps

Copy the CSS file into your local GTK4 config directory:

1. Open or create ~/.config/gtk-4.0/gtk.css.
2. Paste the contents of the gtk.css file from this repository.
3. Fully close and reopen any GTK4 app (like Settings or Files) to see the changes.

2. Apply to Flatpak Apps

Because Flatpak applications run in an isolated sandbox, they cannot see your custom CSS by default. You need to grant them read-only access to your config folder.

Run this command in your terminal:

flatpak override --user --filesystem=xdg-config/gtk-4.0:ro

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