Yo !
Yes, I think I will make a "mod" for your tool. Only, if you agree with my proposal.
This "mod" will add the save button or something like that.
This button can save a file that is loadable.
This file contains all the configuration, including colors, planet type, dither, seed, pixels and rotation.
I want to do this feature because I already made a lot of planets that I lost or exported in wrong proportions. And it frustrates me :)