please look at the screenshot, I'm using a 4k screen with hidpi (dpi scale=200%) the font on the toolbar is still small, it kill's my eyes.
It seems the ui size of HiDPI is set to about 175% of normal dpi.
How about a slider of UI size? so I can use real 200% scale of UI?
You can test it by scale the screenshot to 50%, and see by yourself, isn't the toolbar font too small for you?