One of the references to cover.source in section 10 is wrong (has .svg as the extension), the other one has a hardcoded .jpg. As section 2 notes, the cover.source can be several different extensions, and I think we should depict that here as well, especially since this is the section most will refer to re cover art. While the second one says that the file "can be of any format," the fixed extension could lead someone to think the extension should always be .jpg regardless of format. (Or, as just happened, that the format should be converted to .jpg.)
One of the references to cover.source in section 10 is wrong (has .svg as the extension), the other one has a hardcoded .jpg. As section 2 notes, the cover.source can be several different extensions, and I think we should depict that here as well, especially since this is the section most will refer to re cover art. While the second one says that the file "can be of any format," the fixed extension could lead someone to think the extension should always be .jpg regardless of format. (Or, as just happened, that the format should be converted to .jpg.)