It kind of funny to think about Sedja coming out of a wave of technicolor wave. First she's a vapor in a piece of jewelery, to liquid and than finally a solid.
But its also surprising how much trust Addy puts into her. It makes me wonder if Efreet are different from her world?
After all it seems from the most part Efreet are considered the most evil little buggers around from all other accounts. But Sedja has been helpful, obedient and while at other time intimidating, she at other times look almost like a child having a good time.
Oddly enough I kind of thought of Final Fantasy 7 the first time I saw Addy call her out. Then did a double take when I saw her face when Addy called her back. But Sedja does look good in purple.
It may be that Sedja has been constrained to obey the holder of the amulet.
That's not unusual, for typical stories of djinn or efreets, although I don't know how it maps to what Jigsaw has in mind...