yeah and because of my poor eyesight even I did not know this. Chris pointed out that every color in the palette has a 32 number difference brightness between them.
Also, part of the reason I did not port the entire tileset was because, and it might just be on my side of theings, Solarus takes a long time (up to 30 seconds) to load a map for me. I have three computers, each of them with a different OS on them for compatibility purposes. One has Windows 7 Home premium, one has Windows 10 Free upgrade, and the other has WIndows XP SP3. I have run Solarus on my Windows XP machine as well as the Windows 10 machine. The Windows 10 machine cuts the load timee down by around 10-15 seconds, but the XP machine loads a bit longer, between 15-25.
I am working with the tileset that I uploaded here, but mine is less compressed than this one (which, if you look closely, some of the tiles have noise in them). Without the compression, so far that png file is around 300 KB in size. And in his recent stream he states that Solarus is designed to load maps and even tilesets of virtually any size. However I noticed that when I used one of his tilesets, load times were instant, no longer than 3-5 seconds. Loading one of mine brought the load time up significantly, even on small maps using the much bigger tilesets.
So, I tried to minimize the number of tiles as well as the overall file size to help load times. This resulted in the image forcing it down to a 256 color png with alpha transparencies, which looks kinda terrible.
I will replace the reduced image with a less compressed version so if anyone downloads this image to use in their projects PLEASE be sure to update it. I will edit the post accordingly to let everyone know it has been changed!
-EDIT- The image has been updated!