Hello everyone,
I just switched to KDE on my Arch. With Cinnamon everything worked correctly.
Minecraft Launcher uses Swing as GUI toolkit, and it doesn't display text well. Some text appears, some doesn't.
Here is a screen:
http://it.tinypic.com/r/v5zqco/9.
This is pretty strange and never happened to any my KDE installation.
I didn't test any other Swing application because... I don't know any Swing application that is lite enough for a test...