How to redraw all toolbars in IDEA?

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.

Normal toolbar:

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?

(I tried


but it does not help)


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