Quote:
Originally Posted by philja
And I'm certain I only used your plugin to validate and there's no coding error. I don't understand why it's only the linux box which produces this message, but I'm not going to worry too much about it.
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This is an
INFO message that is shown, because you've enabled the Usage option in EpubCheck.json via:
Apparently, the EPUBCheck devs decided way back in 2019 to report all
epub:type value checks as USAGE messages and it doesn't look like that they've updated the usage checker code in a while...