Has anyone found a way to reduce the performance hit of the new suits? The 4k resolution map in the OP produces 2MB textures when fully compressed, and I lose a lot of FPS using them. Scaling down to 2k cuts the filesize down to 800KB, but the game won't load the textures properly and defaults back to built-in suits. Switching to .dds actually increases the file sizes, unless I'm using the GIMP exporter incorrectly, I get 8-16MB for the image instead of 2MB.
I've got a dozen suits made, but I'm hesitant to use them if going EVA with a couple Kerbals at the same time brings my frame rate to the single digits.
I've also got the original files broken down into individual layers in .xcf format that might prove useful to anyone looking to make their own suits for a larger project (like the dozen classes for USI-MKS).
Edit: It turns out the game can't find the textures if the .cfg includes GameData/Squad/Suits in the file path, but works fine if you start with Squad/Suits. Compress away - I scaled mine down to 1/4 the size of the map in the OP and the game is running smoothly again.