dirty stipple noise background. splattered grain grunge texture. dotted graininess halftone textured overlay. sand dust

overlay grunge background texture graininess granules noise grain sand dust dirty dot stipple textured grit halftone scattered distressed backdrop dotted pattern surface grainy gravel paper retro rough dirt dusty stone vintage subtle fleck distress splash stamp effect closeup monochrome bg comic old bust worn grid print scratch semitone gritty