Michael Paglia visits the Colorado Springs Fine Arts Center and Arvada Center for the Arts and Humanities in this week's review. Both of these exhibits focus on linear art. The show at Colorado Springs Fine Arts Center is a solo exhibit centered around Charles Bunnell, a key pioneer of vanguard art in Colorado. At Arvada Center for the Arts and Humanities, a group show surveys several decades of pattern painting, geometric abstraction and hard-edge abstraction. Continue reading for photos from both exhibits.