diff --git a/phpBB/styles/prosilver/imageset/forum_unread_unlocked.gif b/phpBB/styles/prosilver/imageset/forum_unread_locked.gif
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rename from phpBB/styles/prosilver/imageset/forum_unread_unlocked.gif
rename to phpBB/styles/prosilver/imageset/forum_unread_locked.gif