Arch

KDE Plasma theme You'll need plasma 5.22 or above to enjoy full features like opaque/adaptive/translucent.To enable Glass effect go to settings -> Desktop Effects -> uncheck "Background Contrast"To disable Glass effect/change current theme go to settings -> Desktop Effects -> check "Background Contrast"To get Clear Glass effect go to settings -> Desktop Effects -> uncheck "Blur" Source: https://www.opendesktop.org/p/1540609