RedLine, the downtown studio complex with expansive exhibition spaces, celebrated its tenth anniversary in 2018 with a major retrospective. One of the show's pieces is a permanent addition: "R-P Curvature," by Clark Richert, which was painted right on the wall adjacent to the entrance of RedLine. This particular part of town is lousy with wall-sized murals, but few rise to the level of real art, as Richert's geometric abstraction does. The composition is derived from physics, with the precise trajectories of the multi-colored curving lines entangling with one another and running across an underlying grid predetermined by equations. Laura Merage founded RedLine a decade ago with the goal of creating an "art incubator," and she's succeeded, bringing Richert — one of the founders of Colorado's Drop City artist commune in the '60s — together with the under-forty art crowd.