Like the "three sided box" it's a theme that's been running for a while. One City Hall, across the street from the Ryerson building, has a subtler version of the cladding pattern. And of course The Great Man uses the syncopated beat of staggered panels and fenestration in his buildings. It's a graphically dynamic look - when you're standing at Bay and Bloor his checkerboard Woodsworth Residence upstages the Crystal for attention even though it is more distant - and uses tonal differences within a muted colour palette rather than bright or garish colour contrasts. aA's Regent Park residential tower, when seen from across the Don Valley, is another one ... and their Wellesley Central Residences.