Is there any tutorials/guides on editing sprites? I'd like to see if I could edit my player's sprite so she has digitgraded legs. But I wasn't sure where to start.
You should find everything you need at the sticky: http://community.playstarbound.com/...-and-general-modding-discussion-redux.109131/ What you want to look for is specifically .XNB modding which will require you to learn how to extract/pack game files for editing.