Can't See Text in AfterShot Pro 3

[undfined]

I got AfterShot Pro 3 working on my Dell XPS 13 (model 9343) with Ubuntu 16.04. It has the hi resolution touch screen. The app seems to be working but I can barely read the text - it's so small! System-type menus are fine as the zoom settings in Ubuntu work, but the app seems to have it's own static resolution.

Any way to adjust this?

I tried searching the forums but didn't come up with anything.

Thanks for your help.