Thanks! I'm making a tool that has come up for myself on more than one occasion. Not as artistic as my usual work perhaps, but functional. Its a series of tintable glowing lines. Should be good for constructing cyberpunk network maps, large magical inscriptions & traps on floors, or doing virtual reality overlays. I think the tint feature has a lot of great potential that I've not explored thoroughly.
Using Aaron's instructions to design my tests I found that medium greys with large highlights and medium shadows get the best results as far as glowing objects go. That's my suggestion for anyone else looking to into creating tintable glowing assets for their own campaigns or marketplace sets.