@mmb90 range of alpha would be 0 - 255, right? Do you really want it to be 0.5 or rather something around 127 (50% opacity)?

Or does it work with floats in the range 0-1, too? Did not actually test your code…

Just tested with CLJ (so on the JVM), I think you want 127 🙂

ha! I guess I assumed the alpha would be between 0 and 1.0. Works fine with 127…thanks @nblumoe.