File this change under the "You have to have cruised for a while to notice this change" category. Royal Caribbean has rolled out a new type of magnet designs for your stateroom attendant.
Royal Caribbean Blog reader Ken "Wolf" Jarvis spotted the new magnet design meant to inform your stateroom attendant if your room is ready to be made up or if you would prefer not to be disturbed.
The magnets are currently on Adventure of the Seas, although others have noted the design is also on Majesty of the Seas, Harmony of the Seas and Symphony of the Seas.