Bug reports: Bottom #97 seems to have an errant marking that shows up right below the neck. Most top options cover it up but it's noticeable if tops are set to #0 and it can also be seen in the preview area in the tinting menu.
The arrows for selecting the background skip over option #0.
This is perhaps less of a bug and more of a lack of clear usability but the help menu mentions an icon of a white paint can that can color multiple items simultaneously. I only see the red paint can for coloring a specific item.
Suggestions: Scrolling through each option one by one is a little tiring and even more so when there's dozens and hundreds of options. I know I can jump to a specific number by clicking the number box but I think it would be great if there was a scrollable menu that showed several items at once.
It would be nice if more of the accessories could be broken out into their own sections. I'd like to equip both a pair of glasses and the pride pins.