Change the circles in inventory / skill bar to the squares on the previous skin. They are much easier on the eyes and feel cleaner.
When you lock the F tab from selling to NPC on the new skin it doesn't change to blue anymore. That is helpful to reassure it is locked when you use the feature.
Rounder edges on most of the interfaces would be nice, but at least on the item pickup that shows at the top of your screen when you obtain items. It's very weird to see as just a rectangle.
Offer a handful of colors, (Would love to see a purple version).
