I fixed this locally but I wanted to mention it here to since I originally thought it was a code bug, there is a problem with sunglow01. It has a square box around it, which looks mostly black if you view the image normally, but in game it can look like it's getting specular light applied to it. I'd bet this is just where the image canvas was resized and the excess filled by black while leaving an off color square in the middle. I fixed this by opening the blue sun glow (since it looks almost exactly like sunglow01), desaturating it, and saving it back out as sunglow01.