IDEA 2016.3 on Ubuntu 16.04
I faced a problem with all toolbars: when I change the font size in Appearance & Behavior > Appearance > Override default fonts by it scales toolbar images but doesn't scale size of toolbar itself.
Toolbar after font size change :
Also sometimes it doesn't scale some of disabled icons
So the question is how can I programmatically force IDEA to redraw all toolbars from my plugin?
but it does not help)