Call it the Paint Giveaway War. Following on the heels of Valspar’s “Power in Color” campaign, where the paint manufacturer gave away 100,000 free paint-sample kits during the first 100 days of 2011, Glidden has upped the ante with its “97% Paint Quart Giveaway.” The first 200,000 people who register online at glidden.com on May 16 to 17 can choose a free quart of interior paint in eggshell finish of any of the 306 colors available in the Glidden paint color palette.