Hi, thanks for response! I tried to put everything on one screenshot.
1. I was unable to remove corners. When I opened configuration file, line MainCornerRounding=0 was missing. So I pasted it to "[Main]" part of config. Force closed slickrun, run, but the corners are still there (pink in screenshot).
2. Font size - system dialog only alows 48, I would prefer to go bigger, I am not sure why it is even limited.
Thanks for your help!
I don't know what "Force closed slickrun" means, but you should simply type QUIT. Note that you must follow the steps in the order I provided, and the MainCornerRounding value (confusingly) goes inside the [General] section.
But the possibility to choose a theme is nice. For slickrun: power users could customize their #skin#.ini in a skins-folder.