For a pinch more personalisation of Ubuntu 24.10 check out Auto Accent Colour, a new GNOME Shell extension that changes the system accent colour based on your current desktop wallpaper. Accent colours are a headline feature in GNOME 47, although not new to Ubuntu users since Ubuntu added its own approach to accent colours back in 2022. To change the accent color, we take the Gnome Shell theme from this repository, modify the scss file to change the accent color, and then install the modified theme.
A GNOME Shell Extension that provides 7 Custom Accent Colors for versions 43-46. The selected Accent Color can be applied to GTK4/GTK3 apps and the Gnome Shell. The Auto Accent Colour extension provides a quick and efficient way to enhance the visual appeal of your desktop by automatically configuring the GNOME accent color based on your wallpaper.
It's a user-friendly option that simplifies how users personalize their environments, differing from more complex themes that affect GTK4/libadwaita apps. Automatically set the GNOME accent colour based on the user's background. Note: GNOME Settings sometimes has an issue of it 'resetting' the accent colour when the Appearance page is open and the accent colour is changed externally.
If this happens, navigate away from the Appearance page (or close the Settings window), and re-run the Auto Accent Colour script by clicking the 'Force Refresh. GNOME 47 finally introduced accent colors support, allowing users to choose the color for slide-bars, toggle buttons, input border, and so forth. However, it so far does NOT auto.
Since this was something some people have been requesting for a long time, I wanted to share with you the good news: there is a new extension that allows to change the accent colour of Gnome. It colours consistently both the shell (Extension User Themes needed to change the theme in Tweaks) and all the other apps. Simple and easy to use.
For me it works fine, but the usual disclaimers apply. Just choose one from the list, then Adwaita apps (may need a re-launch), Gnome top-bar, and menus' colors change automatically according to the color scheme. You can simply edit the gtk.css file in ~/.config/gtk-4./ and set the color you want.
However, I cant find anywhere in the internet on how to configure accent color of gnome shell.