yeah, the qdoos design is visually appealing and easily readable.
My thought is you might check some of the "theme" color combos on MS word or Excel if you're looking for compatible combinations that someone else already spent a stack of money/time researching. Something that combines soft on the eyes but still has good contrast and visual appeal could be easily located that way.
Current theme is readable but comes off as a tad "stark" and uninviting... maybe "incomplete" even, as though some accent color failed to load.
I DO like the text instead of just graphics on the buttons. Very user friendly.