I will say that I would like it clearer to know what skills each character is proficient in. I can kinda do that by selecting the Character Tab, clicking the arrow next to the ability score. I almost was about to offer this suggestion:
UI Suggestion: On the Character Sheet tab, there should be an little arrow widget by the Proficiency Bonus tab like the one beside the ability scores, and if you click it, it expands and shows the list of skills that character is proficient in. That would be especially helpful when trying to find out which character would be best for a task.
...but then I realized that it if you're looking for a specific skill, it probably wouldn't really save any clicks at all, compared to clicking the arrow beside the ability score.
