KEN KRAUS’S PAINTINGS have the chromatic burst and formal strength that can only come from the eye of a natural colorist and the hand of a trained architect. His abstract landscapes evoke sun-soaked days in deserted cities or on Mediterranean beaches, a world of royal blues and cheery oranges seen through optimistic eyes. Bold strokes of pigment surround the occasional found image — like a tiny photograph of a cityscape — striking a pitch-perfect balance between energetic sweeps of color and clear, tight detail.