On Wed, Nov 15, 2006 at 01:06:14PM +0000, Andrew S. Townley wrote:
However, I did try it in addition to the GIMP, but I got exactly the same results--probably due to the "partial" transparency required for the anti-aliasing to work against an alpha-only background (white text, transparent background).
Right. As you've already noted, GIF only supports binary transparency. So, to get things looking decent, you either hand tweak the image, or premultiply the image with a known background color. GIMP suggestion follows. If you want to only merge the background color only onto the parts of the image that are partially transparent, you can select the region using the channel dialog, paint the colors using the selection into a new layer, and go from there
Jeff