Use the themed Defaults everywhere

apps/dav/lib/Connector/PublicAuth.php

apps/dav/lib/Connector/Sabre/Auth.php

apps/federation/lib/DAV/FedAuth.php

core/Application.php

core/Command/Maintenance/Install.php

core/Controller/LostController.php

lib/base.php

lib/private/Console/Application.php

lib/private/Server.php

lib/private/Setup.php

lib/private/URLGenerator.php

lib/private/legacy/util.php

lib/public/Defaults.php

settings/Application.php

settings/Controller/MailSettingsController.php

settings/personal.php