add_meta_box: $context and $priority values

Hi all

I recently found a code sample which uses the value ‘core’ for the $priority argument. Interestingly, the WP function reference for add_meta_box() doesn’t list anything like that. Does it exists?

Along this I was wondering what is the difference between $priority=’low’ and $priority=’default’.

And also if it makes any difference in the order of the meta boxes if the $priority arguments are used with $context=’normal’ or $context=’side’. Besides of course the varying column.

Unfortunately there isn’t much information covering this topic but I’m sure some of you can help 🙂