Packed with numerous new features and improvements, the KDE Plasma 5.21 desktop environment promises a brand-new application launcher, a new dark theme for the Plasma desktop and a light theme for applications, a refreshed color scheme for all default KDE apps, as well as the highly-anticipated Plasma System Monitor app. Of course, there will also be a lot of KWin and Wayland improvements that should reduce latency and smooth animations throughout the entire desktop environment, better compatibility with GTK applications, especially with apps written in GTK 4.