How to change the font size of "diagram toolbar" area?

I have changed the whole program’s font size to 12 in window->application options, and it works in most part of of the app after restart.
However, this area (possibly named “diagram toolbar”) 's font size is still 11, which is blur in my Computer.
I have googled and check help, but without luck.
Anyone can help me?

Hi Elias,

Thank you for your post. Currently, there is only one single font size setting that applies to all GUI components, which is the option you said. I will forward your case to our team for further studies.

Best regards,
Jick Yeung

Thank you very much, looking forward to your help