For the curious: Piet Mondrian's most famous paintings (amongst others) were a part of the De Stijl art movement, of which there is, to my knowledge, only one building built in the style:
(
Schroeder House, by Gerrit Rietveld)
Note that, much like Mirror's Edge, the use of color is rather limited, and strong color choices are limited to small elements (in the context of a videogame, you'd use these to draw the eye to high-traffic and otherwise important areas). Many modernists would even be offended by this building's use of muted shades of blue - see
Richard Meier's white-washed buildings for an idea of what more "pure" modernism looks like.
Most (if not all) lines in the composition actually define some part of the architecture. There aren't any arbitrary "illustrations" on flat walls, the form of the building itself is just made complex to create a composition. De Stijl is also, in its purest form, composed entirely from right angles. Modernism doesn't have to follow these rules, but they're more or less good guidelines for making anything look modern.