Can I mix powder paints (Pro-Tec) and achieve a true color? i.e. can I mix blue and yellow to get green? Or, will I get a jig head with swirls of blue and swirls of yellow? (which might look neat, but not what I want).

I have a fluid bed and suspect it would be best to use that, correct?

It's probably best to just pay the $2 and buy the color(s) I want, but I'm curious about this.