I just made a stunning realisation that is really quite obvious now that I’ve noticed it.
The 1024×768 and 1280×960 sections were completely pointless. They are the same screen ratio as 1600×1200, so 1600×1200 can be used for those resolutions, as well as 800×600 and 640×480, if anyone even uses that anymore.
So, really, I only need 1600×1200, or something higher at the same ratio, such as 3072×2304, along with the other common resolutions that don’t match that ratio such as 1280×1024, and widescreen at 1440×900. Of course, these two have higher res options as well that are used, but not so commonly. For now, I will stick with these 3.
Thus I have removed the 1024×768 and 1280×960 galleries.