Hello, just in case anyone was interested in this case, but wish it was colored I have made a D.I.Y. guide on how to dye this TEX acrylic case. hope you find it helpful.
http://imgur.com/a/Lqxme
SlotH42I've seen people do similar with rit dyes and reported they were able to get the colour out with same-brand dye-remover, but I wouldn't recommend trying it out on this... that and re-dying it would mean exposing it to more heat.