Ubuntu with Platform designer font and icon size

I'm sorry to hear that, but the Quartus Standard version does not have this capability.

However, you can try changing the font size using your environment variables.

Perhaps this article from Ubuntu may helps.

https://help.ubuntu.com/stable/ubuntu-help/a11y-font-size.html.en#:~:text=Alternatively%2C%20you%20can%20quickly%20change,size%2C%20press%20Ctrl%20%2B%20%2D%20.

Best Regards,

Richard Tan