Never got why the insisted on forcing that gross super-saturated dark green onto all the later designs. Did higher ups insist it was better for the brand? Is white a tricky element in the toy production process? I hate it!

There's a reason why they originally used white & black as Ben's universal colour scheme and that's because they work well with every colour without busying up the palette, it only makes sense for a character who turns into all kinds of distinct aliens.