Automatically set the GNOME accent colour based on the user's background.
Works out of the box for most backgrounds, but ImageMagick must be installed to parse colour data from default GNOME backgrounds.
Note: GNOME Settings currently has an issue of it 'resetting' the accent colour when the Appearance page is open and the accent colour is changed externally. To avoid this, navigate away from the Appearance page (or close the Settings window), and re-run the Auto Accent Colour script by clicking the 'Force Refresh' indicator option, disabling/re-enabling the extension, or locking and unlocking your device.
Get the source:
git clone https://github.com/Wartybix/GNOME-Auto-Accent-Colour
To install locally, run install.sh. For changes to apply, log out and back in again, or if on X11, restart GNOME shell by entering Alt+F2, then 'r'.
Alternatively, run test.sh, which will install the application and open it in an embedded GNOME shell -- this works on both Wayland and X11.