On Mon, Jul 12, 2010 at 8:57 PM, Eero Tamminen <oak@helsinkinet.fi> wrote: > .. For example GIF format doesn't even support more than 8-bits > and it can be used for huge background patterns. > .. actually you can generate valid GIF format images with 16 million (24/32bit) colors using PHP and GD2, even though it is not an official definition (of the GIF format).