This episode introduces Frankie Kane, another love interest of Wally West in the Flash comic books.
The name "Magenta" is a wink to Marvel Universe character Magneto, a mutant who can remotely control every metallic object. In this Flash episode, Magenta is seen moving only metallic objects.
2 Harry Potter references in this episode. The first at'1:38 is Julian (Tom Felton) holding his pencil very much like a wand, and holding it 'mid spell cast' like. The second is the tie he wears at 10:50. It's green like his Draco Slytherin house colours.