The 2012 numbers are black and yellow on a black background with a light accent at the first digitThe 2012 numbers are black and yellow on a black background with a light accent at the first digit
The windows sign on the background of a wooden shieldThe Windows sign on the background of a wooden shield
The sign of the number pi is made up of black digits on the background of a row of gray digitsThe sign of the number Pi is made up of black digits on the background of a row of gray digits