> Lossy and transparent? Out of luck. Well, you could lossy-optimize PNGs if you really want to. Take Google front page logo, for example: not a lot of colors

> Lossy and transparent? Out of luck. Well, you could lossy-optimize PNGs if you really want to. Take Google front page logo, for example: not a lot of colors to justify using 32 bpp PNG. Just sacrifice some alpha bits, and you can switch to 256-color indexed PNG. I bet nobody would notice the difference, and the result would be a lot smaller.