Wait wait waitSkirt is painted and Koto was VERY sloppy painting the white skirt accents. It was ridiculous.
The plastic that they molded the skirt out of is a different colour? And then they painted it purple??
Why didn't they just use purple pvc???
I guess you gotta find some similar colored paint. Most markers are alcohol/water based. So you'll either end up staining the figure or the marker ink won't want to stay on top of the acrylic paint. :/
Edit: Maybe a crayola marker might work? You'll probably never get the white paint as dark as the skirt, but it should look less noticeable. And you'll be able to wipe away any excess that gets on the skirt part pretty easily.