dot perforation texture. dots halftone seamless pattern. fade shade gradient. noise gradation border. black patern on whi

art backdrop background black border circle comic design distressed dot doted dots dotted effect element faded gradation gradient graphic grid grunge halftone horizontal monochromatic monochrome monocrome net noise opacity overlap overlapping overlay overlays patern pattern patterns perforation pixels point points pop popart print round seamless shade stippling texture vector wallpaper