PIXON_P Alpha blending

[Carlos295pz]

You do not have use error, it is normal that the color does not arrive completely to the color supuerpuesto, not even has much presicion by the definition of 16 bits by color.

What you can do is to swap, if you want the final color to be white, then paint white and it is the black who will change alpha, an inverse process. Or just after finishing with the overlay loop, intentionally painting white with the pixon, saves problems in this way.