Edna Casman isn't the kind of artist who holds anything back. Her bright and bouncy abstract paintings are as unrestrained as they come. They seem to revel in the sheer limitless possibilities of color and shape. A new exhibit of Casman's paintings opens this Friday, March 4, at Unseen Gallery (108 Morningside NE) with a reception from 6:30 to 8 p.m. during which the artist will make a rare public appearance. Casman's show runs through March 26. For details, call 232-2161.