KDE Plasma applications outside of KDE

If you ever use KDE/Plasma applications outside of Plasma (e.g. under i3) and experience theme problems and/or missing icons, try this:

	QT_QPA_PLATFORMTHEME=kde 
	

While this is not recommended, it works for me; using this command, I can now use skrooge under i3 with icons, nice fonts and the plasma GUI theme.