When comparing Zukitre vs Materia, the Slant community recommends Materia for most people. In the question“What are the best gtk3 themes?” Materia is ranked 6th while Zukitre is ranked 9th. The most important reason people chose Materia is:
Includes support for Gnome Shell, has a Cinnamon desktop theme, plus supports XFCE, Mate and all the usual suspects.
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Pros
Pro Designed to be flat with sharp corners
The design of Zukitre differs from Zukitwo in that there are fewer gradients and rounded corners. It is also designed to be more flat.
Pro Good support for various DEs
Includes support for Gnome Shell, has a Cinnamon desktop theme, plus supports XFCE, Mate and all the usual suspects.
Pro Under continuous active development
Responsive and helpful developer.
Pro Customizable via Oomox app
Users can build completely personal version easily using Oomox Gui app.
Pro Corresponding theme for Qt/KDE
There is a corresponding theme for the kvantum-engine under Qt/KDE.
Cons
Con Only supports the latest release of Gnome Shell and GTK
For Debian or Ubuntu users this theme will not work as it only supports the latest version of Gnome Shell and GTK.
Con No Round Corners
Let's be honest Round Corners is a must addition in 2022.