What part of Tiger & Bunny do purple, white, and green plastic bins refer to? In an article I read recently, entitled "Images That Do Not Make Any Sense If You Are Not A Fan", about a Twitter hash that is currently trending, there was an image of a bunch of color-coordinated plastic bins:



The article seems to suggest that this image is somehow related to Tiger &amp; Bunny. What part of the anime are these bins referencing?
It's related to the color-coordination of each superhero's costume. Each characters has a color they identify with:



Barnaby Brooks Jr., a.k.a. "Bunny" is White (with Red).



Kotetsu T. Kaburagi, a.k.a. "Wild Tiger" is Yellow (with White and Green).



Antonio Lopez, a.k.a. "Rock Bison" is Green.

Yuri Petrov, a villain known as "Lunatic," is Black.

Side note: the fried rice is a reference to how Bunny finally learns how to make fried rice (Kotetsu's favorite food).