Switching Plasma theme from the command line

This can be done with lookandfeeltool that shall come preinstalled on any recent version of Plasma 5. To use it, type on a terminal window:

  1. lookandfeeltool --list to get a list of all available themes on your system.
  2. lookandfeeltool -a CopyPastaFromTheOutputAbove to change to your desired theme.

All credits go to user Skyite Ovexion on the KDE's Telegram group.