Game developers and artists uncertain about trademark/IP liability when creating fan-made color palettes and mods

Indie developers, modders, and digital artists create valuable fan content (color palettes, skins, mods) for popular games but face paralyzing uncertainty about whether they're committing trademark infringement. They lack clear legal guidance on what's permissible, forcing them to either stop creating, publish anonymously, or risk cease-and-desist letters. Current solutions (generic legal advice, forum discussions) don't address the specific intersection of fan content, trademark law, and game IP.