I like concept and since XaRT is for a very cool graphics app it would be way cool if the UI for XaRT was likewise visually appealing.

I think the coders can focus on functionality at first while the artists develop presentation concepts. The two can marry up down the road as it's a work-in-progress anyway.

I had an idea of using a gear in the letters a and/or R in XaRT, but since I'm artistically and time challenged I'll leave it to others to consider...

I also like the checkmark in the X of XaRT logo/icon concept.

Fun stuff...