This brand’s designer, who goes by the single name Olga, showed a colorful collection for spring, with most pieces done in an abstract print reminiscent of tie-dye, in cool tones of blue, purple, green and magenta. There were pieced-together fleece hoodies; loose, asymmetric T-shirts, short-sleeved coats in lightweight jersey and harem pants cropped at the lower calf. Just when the show, staged as part of a fashion festival at a local park, started to get a little repetitive, a modern dancer took to the runway. He removed layers of bright-blue outer garments as he performed. Finally, the show closed with two sculptural, slightly Gothic dresses in black and gray, respectively.