User blog comment:Dorayaki/Are Aikatsu! dress outlines over-reused in AiStars Season 2? What do you think?/@comment-28308079-20170710005405/@comment-3237624-20170710034451

Yeah, that is a bit bad. I mean, I thought the recolor was pretty but it seems weird they ONLY did that one.

They could be budge short? Since Aikatsu hit it's 4th season I believe PriPara was starting to overcome the series. So they might be struggling to keep their "design funds", so they need to pad it a little with modified parts/recolors.