phpbb/phpbb — pull request #3103 by marc1706 (2014-11-01 19:12:03+00:00)
Title: [ticket/13263] Use prosilver as default style if user's style doesn't exist

If prosilver is not installed for whatever reason, it will be installed by
the newly added migration.

Ticket: https://tracker.phpbb.com/browse/PHPBB3-13263