At this menu, when you move your mouse up and down along the list of colors, it loads the item the character has equipped, and so it adds like a double loading in a sense when you're moving between them. Looks kinda off, too.
Suggestion for character customization UI
Hello @NHPro
Sorry that it disturbs you. It's taken into account though, I will let the team know how you feel about this.
Have a great one !