Even having it as "textured" still has this gouraud shading (change the angle of the camera and you'll see it), but it's not as intense though. The best I'm going to be able to do is to apply a color reduction to help with compression, getting the equivelent of 16-bit color which is acceptable for most cases (especially without dithering). GIMP isn't working for me right now so I can't test it. It simply won't even start or it takes 15 to 40 minutes just to get it to load frequently having to use the "end task" feature to retry after failing. I've submitted a bug report, but haven't gotten anywhere yet. I also need it for my 2D game as I have big changes that need to be done and can't as I don't have any useful software (stuff 4 years old lacking features is not acceptable).

Still, it shouldn't be too much of a problem. Many of the other large screenshots aren't bad in terms of file size, usually not much more than 120 KB each. Screenshots 31 (major), 36 (minor), 39 (moderate), 40 (minor), 42 (moderate), 43 (moderate), 45 (severe - 550 KB in PNG), 46 (severe), 47 (severe), and 48 (moderate) are the worst. Note how these are only the later ones. 200 KB and above I declare as "hazardous". Though I'm not sure if it's 46 or 47, but one of them, in PNG format, was over 1 MB which I'd declare as super severe and color reduction is practically required. It's the 1 MB PNG file with the 200 KB size at JPG quality of 50. Either that, or I could use the 5.6 MB bitmap image....