PIXON_P Alpha blending

[webmasterpdx]

Also having done a lot of work with video in the past, be aware that our brains don't view alpha with the same linear gradient that the values we put in the argb values. i.e. 50% alpha might appear visually to be 50% mixed colors, but then 70% numerically might appear visually (to our eye-brain connection) to be 95%!
Just be aware of that.