the original concept was to combine all of the locations into ths backwall in a collage style. throughout the design process, this developed into the treehouse being the primary location because of how it serves as "homebase" for the characters throughout the story. the collage aspect turned into having set dressing being flyers, pictures, drawings and other papers that belong to the other locations in the show, with a window of the treehouse having a projection screen in it showing the other locations.