Different shades of the same color in the interiorDifferent shades of the same color in the interior
Letters on a black background, iq in the picture, black backgroundLetters on a black background, iq in the picture, black background
The sign depicted on a black background, the sign of the prostateThe sign depicted on a black background, the sign of the prostate
Words written in white letters on a black backgroundWords written in white letters on a black background