halftone wave background. comic dotted curved flow wallpaper. abstract textured half tone fluid backdrop. black grit pop

dot gradient bitmap halftone comic pattern texture manga background digital duotone fade grid wave pixel speckle tech spot overlay cartoon dust wind back retro superhero rough distress vector ripple gravel messy granules grunge swirl grainy swoosh squiggle grit gritty sand dotted flow bg bw half tone grain noise rippled