The technique of minimizing the distortion artifacts when representing a high-resolution image at a lower resolution
A GUI (often web) technique for trapping user actions across multiple elements by using an overlaying, but transparent, GUI object.
And it seems working fine antialiasing is much better however this beats the idea of a transparent background in the process
Fuzzy .png in Flash CS3
Minus doesn t truly work for antialiasing less than 100 transparent pixels
Native WebGL particle system opacity issue