Quests like Color Your World, Forging the Spirit, My Feisty Little Chocobo, and several others unlock actual features of the game, but the in-game quest icons identify them simply as ordinary sidequests. Particularly with many players saving sidequests to use with later classes, it's all too easy for someone to accidentally miss one of the important ones.

Please add some way to identify sidequests that unlock features. Perhaps the quest icon could be a different shape or color to draw attention to it. Or simply including "feature unlock" in the listing of the quest rewards would help if players get as far as looking at the quest description when deciding whether or not to do it.