ya think thats wacky there carrier decks were painted
bright yellow with a big red Meatball at the end
made for good targeting at midway ill bet.

correction the new releaase invokes ctd ... so no emblem for me ..waaaaaaaaaaa..

Imperial Emblem
were puted on only warships.
(not all war ships).

DD doesnt have, submarine neither.

If one ship operated by (called) skipper ship,
that doesnt have.
If another operated by captain,
it have.

Battle-ship
Aircraft caryer
Cruiser (heavy and light)
only thease...(there is some exceptions)

There were some wacky camo patterns later in the war, Zuikaku had her deck painted to resemble a battleship IIRC.