dark abstract blue background with blackouts, speckles and grains. universal simple classic grunge background

abstract aged ancient antique art background blackouts blank blob blue blur booklet brushed classic colored colours damaged dark decorative design dirt dirty dye elegance elegant fancy gradient grains grimy grunge grungy illustration ink old paint paper pattern retro rich rough scratch simple speckles splat splatter stain stained surface template texture textured universal vintage wall wallpaper website