http://4.bp.blogspot.com/-AQTRoWPB3n4/Tbn5O99q6lI/AAAAAAAARG...
Though it wasn't mentioned in the movie, Brad Bird described Edna as "half-German and half-Japanese". The walls of this room resemble Japanese rice-paper walls -- but the divisions are arranged as in a Piet Mondrian painting. Mondrian was Dutch, not German, but there's still a sense of Asian and European art styles mixed here. I never noticed that before.
Fuck this movie is so good.
True story: I once was on Maui, and stopped inside a curio shop. The owner of the shop, a little Japanese woman, came out from the back and smiled at me -- and I'll be God-damned if she didn't look exactly like Edna -- perfectly sculptured hair, glasses, and all. I found myself actively looking for a secret lab behind all the blown-glass trinkets. It was only after this incident that I found out Edna was conceptualized as part Japanese; and today I wonder if someone at Pixar didn't visit the same shop, meet the same woman, and incorporate her into Edna's design.