Three away (from Spartans, Athenians, and other general stuff):
Text improvement proposals: https://gitea.wildfiregames.com/0ad/0ad/issues/9308.
Arguable text improvement proposals: https://gitea.wildfiregames.com/0ad/0ad/issues/9309.
Icon improvement proposals: https://gitea.wildfiregames.com/0ad/0ad/issues/9310.
Obviously, it needs human intervention to be great.
Having an idea of how something works will serve a passionate mind or group of enthusiasts very well.
Actually - the only protection large softeware houses I can image to have against decompilation/re-creation is to ship only a small loader and GUI frontend and provide all other functionality exlusively online. Even then there will be ways to reverse engineer fucntionality from screen videos.