kde crash when using pycharm or android studio or idea-IC

pycharm is popular python IDE tool. Android studio is formal IDE for android development base on idea-IC.

error

kde crashed when using pycharm or android studio or idea-IC.

reason

caused by gtk2 theme oxygen.

solution

kde – system settings – application appearance – gtk – gtk themes
select a gtk2 theme : DO NOT use oxgen
select a gtk3 theme : DO NOT use oxgen
font : change to 14 for more big font.