Did you see the CD cover shows "MIIRO 海色" at the right bottom of the picture?Rakuen wrote:
Referred the CD page: http://kancolle-anime.jp/goods/?page=cd
It says みいろ , so I guess title is Miiro
Also referred a database commonly used (not official tho): http://vgmdb.net/album/49585
Miiro is written there
Need a clarification where the source is actually referred to.
@Habi call me back after meta and Lust's reb, as you requested me recently
Also,AKINO's last CD エクストラ・マジック・アワー.It's cover http://puu.sh/eKVmL/b6ede62eee.jpg
So you can see https://osu.ppy.sh/p/beatmaplist?q=EXTRA%20MAGIC%20HOUR , all these maps are ranked with EXTRA MAGIC HOUR but not Extra Magic Hour
And another example of KIMIJYANAKYA DAMEMITAI/URAOMOTE FORTUNE.their cover shows all capital words then we used all capital words.So I think the cover could prove that