20 introduced automatic image credits, but it requires all four fields of metadata (source URL, author name, license name, license URL) to be filled out.
Sometimes images won’t have a license URL (eg: "by permission of the author" as a license name), or a source URL (eg: if we’ve been given the photo by someone we know).
I think the permutations that matter are:
title by <source url>author name</source url>, <license url><license name></license url>
title by <source url>author name</source url>, <license name>
title by <source url>author name</source url>
title by author name, <license url><license name></license url>
20 introduced automatic image credits, but it requires all four fields of metadata (source URL, author name, license name, license URL) to be filled out.
Sometimes images won’t have a license URL (eg: "by permission of the author" as a license name), or a source URL (eg: if we’ve been given the photo by someone we know).
I think the permutations that matter are:
titleby<source url>author name</source url>,<license url><license name></license url>titleby<source url>author name</source url>,<license name>titleby<source url>author name</source url>titlebyauthor name,<license url><license name></license url>titlebyauthor name,<license name>titlebyauthor name