Personalized Color Wheel Dark Products Youth T-Shirt. This computer programmers color wheel is a handy reference that programmers and web designers can byte into. This humorous design makes a great gift for your favorite techie or geek. Let the good times roll in a durable T-Shirt that takes kids from school to play in an amazing array of colors. 5.0 oz., pre-shrunk 100% cotton. Seamless 1x1 rib collar.