Documentation to elaborate "What is a patch" would be good, but it ought include not only unified diffs to code, but also other useful formats. Examples might include modified graphic files (e.g. background transparency for icons), recreated sounds (when sounds are non-free, or otherwise not correct), etc. While it is the common case, the preferred form for modification is not always text, and the preferred form for reception of alterations is not always diff (xdiff of .png (or even diff of .sng) is painful).
Documentation to elaborate "What is a patch" would be good, but it ought include not only unified diffs to code, but also other useful formats. Examples might include modified graphic files (e.g. background transparency for icons), recreated sounds (when sounds are non-free, or otherwise not correct), etc. While it is the common case, the preferred form for modification is not always text, and the preferred form for reception of alterations is not always diff (xdiff of .png (or even diff of .sng) is painful).