Originally Posted by Jellby
If I understand meme's comment correctly, this is not the case. "Add Semantics" adds some needed tags where needed:
If you designate an HTML as a cover document, Sigil will add a line to the <guide>.
If you designate an image file as a cover file, Sigil will add the <meta> tag.
Note that the <guide> should only contain links to HTML files, and that the <meta> tags are not standardized:Kindlegen uses it, other software may use it too, but there's nothing in the spec that says what its effect should be, actually, there's no "cover" in the epub spec.
That sounds fair. I will try it and report back.