I don't have to fix it, Patchou has to
- I already sent him a new favicon.
And anyway, it's not a problem with the site, it's a bug with Avant Browser -- it doesn't display the lower quality version, instead it just shows the windows xp version with everything transparent as black.
So, there's no reason to fix it, except for us avant users... and if it's fixed, it will look worse for non-avant users on xp