Well finally got body coloring done thanks to [someone who shall not be named]! I also added a toggle for filtering the output.
By default maps will be filtered, but filtering attempts to make distorted images(which is the case when scaling down) look better. But while they do that, they also add a lot of colors and thus can increase the file size of the map image by a large amount. For example, a filtered 1:2 map of a 3x3 gmap is ~1.5mb. A non-filtered image of the same map is only ~500kb. So it's up to you to decide if you want a better output image with a much larger filesize, or an "uglier" image with a much smaller filesize. You can compare the two images below.
Filtered:
Non-Filtered
