Hi. New kid on the block here.
I'm cutting my teeth on add-on development, and - as usual - I'm starting from the basics: changing what already exists to see what I get.
I ended up with a (perhaps?) nice solution for some complains I had read on the forum, but that solution reused some (edited!) meshes from the Squad's vanilla install, and now I'm unsure if I can redistribute the (edited) material bundled with mine.
Looking into the KSP's directory, I found a LegalNotice.txt with many people granting the licensee rights to do whatever is wanted - but of course, each licensor grants the right for his work, and for his work only. But I don't know what resources from Squad's subdirectory was licensed by whom, and of course Squad's copyrighted material is licensed under different terms (or I would not have to buy a KSP copy to legally play it, right?).
I'm not worried about retaining ownership of such material - ethically, I think it "belongs to the game" as I'm reusing game's resources, and I don't mind waiving away the rights for the (few) things I had done. But I don't want to cross any line on the forum, so I choose to be safer than sorry.
Since I didn't found any solid definitions about the issue, what's is currently accepted as the way to go around here?