Customize your own GTK3 themes using CSS
Going Advanced with Oomox
Oomox, also known as Themix Designer [4], is a graphical application for generating custom GTK3 themes. Oomox is very easy to use, and it allows inexperienced Linux users to make their own beautiful themes within minutes. The application comes with a collection of presets that differ by color schemes, shape of the UI elements, paddings, and sizes. It is very convenient to pick a preset in Oomox, possibly introduce some changes, and generate a theme. Oomox saves users from any manual routines and automatically generates CSS files, puts them in correct folders, and makes the theme available with no extra effort.
Oomox has three panels: the left-most with a tree of presets and plugins, the central panel with a rather long list of available settings of the currently selected preset/plugin, and the right-most preview panel (Figure 4).
That said, it is possible to instantly see all theme features without applying the theme for the whole desktop. The list of available theme options includes colors, roundness, gradients, paddings, sizes, links to icon sets, and also special settings for such apps as Gnome Terminal and Spotify.
After playing with a theme's options, hit the Export theme button, define extra GTK3 version-related settings, and finalize the theme. Oomox is a great tool that saves a lot of time for GTK3 theme designers. The tool can create a color palette from an image, create GTK2 assets based on a GTK3 theme, complement your package with Gnome Shell and the Cinnamon theme, and do many other stunning things. And nothing prevents you from examining the resulting CSS code produced by Oomox later on.
Infos
- CSS Markup for GTK3: https://developer.gnome.org/gtk3/stable/chap-css-properties.html
- SASSC Generator: https://github.com/sass/sassc
- Adwaita Code: https://github.com/GNOME/gtk/tree/master/gtk/theme/Adwaita
- Oomox: https://github.com/themix-project/oomox
« Previous 1 2
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.
![Learn More](https://www.linux-magazine.com/var/linux_magazin/storage/images/media/linux-magazine-eng-us/images/misc/learn-more/834592-1-eng-US/Learn-More_medium.png)
News
-
NVIDIA Released Driver for Upcoming NVIDIA 560 GPU for Linux
Not only has NVIDIA released the driver for its upcoming CPU series, it's the first release that defaults to using open-source GPU kernel modules.
-
OpenMandriva Lx 24.07 Released
If you’re into rolling release Linux distributions, OpenMandriva ROME has a new snapshot with a new kernel.
-
Kernel 6.10 Available for General Usage
Linus Torvalds has released the 6.10 kernel and it includes significant performance increases for Intel Core hybrid systems and more.
-
TUXEDO Computers Releases InfinityBook Pro 14 Gen9 Laptop
Sporting either AMD or Intel CPUs, the TUXEDO InfinityBook Pro 14 is an extremely compact, lightweight, sturdy powerhouse.
-
Google Extends Support for Linux Kernels Used for Android
Because the LTS Linux kernel releases are so important to Android, Google has decided to extend the support period beyond that offered by the kernel development team.
-
Linux Mint 22 Stable Delayed
If you're anxious about getting your hands on the stable release of Linux Mint 22, it looks as if you're going to have to wait a bit longer.
-
Nitrux 3.5.1 Available for Install
The latest version of the immutable, systemd-free distribution includes an updated kernel and NVIDIA driver.
-
Debian 12.6 Released with Plenty of Bug Fixes and Updates
The sixth update to Debian "Bookworm" is all about security mitigations and making adjustments for some "serious problems."
-
Canonical Offers 12-Year LTS for Open Source Docker Images
Canonical is expanding its LTS offering to reach beyond the DEB packages with a new distro-less Docker image.
-
Plasma Desktop 6.1 Released with Several Enhancements
If you're a fan of Plasma Desktop, you should be excited about this new point release.