sentences:  For their inaugural season they adopted the colors of black and gold, and white and gold, with a logo incorporating the number 13 and a stylized Metatron's cube in the shape of a rugby football.In 2010, and in conjunction with the re-branding of the American National Rugby League logo and those of all affiliated clubs, the Thirteens adopted a new logo which depicted the numeric symbols of "1" and "3" merged to form the letter "B" for Boston.Additionally, the color of British racing green was added to the existing colors of white and gold, reflecting the Boston area's strong Irish heritage.