Custom Uniform: The rhythmic gymnastics uniform is simply described in the Shikisai handbook as consisting of a leotard, a skirt, tights, and ballet shoes; everyone on the squad wears wildly varying outfits, all of which conform to the vague handbook specifications.
Dance Battler: There's a few of them; if you count rhythmic gymnastics, then Cure Red is also this.
Sensitive Guy and Manly Man: Toru and Yuki; ironically, Yuki's theme color is pink, and neither of them have blue as their theme color.
Shout-Out: In an homage to Elvis Presley's appearances on The Ed Sullivan Show, when filming a new music video while wearing a very short dress consisting of a satin corset and pink tutu, Toru is told by his manager to avoid moving in a manner that will lead to a Panty Shot, and some shots were done from the waist up just to be on the safe side.
Tights With A Skirt: Part of the general Shikisai uniform, as well as the school's vaguely-described rhythmic gymnastics uniform.
True Blue Femininity: The Shikisai ballet class's leotard is blue; also, the most feminine girl on the squad (apart from Cure Purple) is Cure Blue.