Talk:Summer 2017 Event/@comment-36.84.13.23-20170811065555

Could I ask someone to tell me what those color tag for? Could it be that, a ship can only be used in one color tag? For example, say I use Z1 in E2, thus she got blue tag, that means she can only be used in E2 and E3... is it like that? Should I worry about it if I'm in easy anyway?