dotted, dots pattern, background. seamlessly repeatable both sid

abstract abstractionism backdrop background black blackwhite both circle continuous dots dotted effect endless flecks free gradation graphic half halftone illustration minimal misc miscellaneous monochrome monocrome opart optical patern pattern pointilist pointillism pointillist prepress press repeatable repeating repetitive royalty seamless seamlessly sides speckled specks spots stipple texture tileable tone vector visual white