That is ugly, what kind of setup is this?
I haven't had that serious color problem ever.
The setup is quite specific ! ^^
In fact, I'm on an UAE4ARM-based distribution for the Raspberry Pi micro-computer, called Happiga (If you want to try, here is the link :
http://happi-game-center.com/ . Sorry, only the french language seems available). At the beginning, it was just an emulator to make old games work, but its designer decided to add recently the bsdlibrary (for the Internet connection). So, I thought it could be a great idea porting NetSurf for Happiga, because with this, Happiga could be used as a real OS on Rasberry Pi, and this could make Amiga revive again ! Well, maybe I go too far... but it would be so cool ! ^^
Also, I used a 3.9 workbench on it, but we can use every workbench you can find on the Internet.
strange. we had and still certainly have a number of pixel format problems displaying images here. denying this doesnt help to improve anything.
best thing would be to gather precise list of correctly displaying formats and those being off, maybe even with a small picture to illustrate whats wrong. can you specify it on your side, dnadnl? i dont remember how to do that exactly, but i have found the following hint:
edit: i might look at aros tests, perhaps there is one that reports pixel format and can be compiled without aros libraries. we might need a handy tool to determine pixel formats.
i think its important issue, because its always the problem especially with web browsers, due to fact that amiga rtg solutions provide a number of different modes. and what looks right on one setup will look backwards on another.
I don't know how to do this at all ! ^^ But maybe I could find (or create) a website displaying a same image in different formats, to see those who are well displayed (or not). But sometime, the picture is displayed, sometimes, not, sometimes with weird colours... I'm not sure I can really count on NetSurf on Happiga, now, as it is unstable.
Netsurf logo is displayded "about right", with AGA. No dithering and it is like it's using only few colors. Never seen that rainbow effect before that DNADNL's pictures have. With RTG prety much every image is displayed as it should be dispalyed, at leeast I don't have noticed anything weird.
AGA has serious problems with amiga.org logo (jpg) but not with amigaworld.net logo (gif)
Chris fixed something and now buttons look about right. AGA has general problems, every single image looks weird even if it is diplayed somewhat right, but most noticeable is with some jpg / png pictures.
Right side of amigaworld.net is changing banner, amiga future banner is unreadable, but colors are right. 
It is animated gif. It is like it would be resized small and after that big again. Losing about 75% of it's pixels?
That's right, I use the AGA Chipset configuration for Happiga. I followed a video game-oriented tutorial, so maybe that's not the best solution to use... I can tru others chipsets if you want (I have OCS, ECS Agnus, Full ECS, AGA, and I can enable NTSC, too).
