rectangle halftone , monochrome abstract graphic. ready f

abstract abstractionism background black bw colorless diffuse dots dotted dtp effect element flecks gradation gradient graphic grayscale greyscale half halftone illustration linear minimal misc miscellaneous monochrome monocrome optical pattern pointilist pointillism pointillist polka pre prepress press print rectangle shape speckle speckled specks square stipple tone uncolored vector white