dotted and mathematically precise areal gradients with no sharp edges

abstract area axial backdrop background banner black circle clip collection cover decorative density design dot dotted edges effect element eps8 exact fading fill form geometric gradation gradient graphic grid grunge halftone illusion illustration imitation ink linear mathematically mimic modern moiracopy monochrome optical pattern percent point precise print progression range retro round scale seamless set shape space span spot spotted steepness stipple style swatch texture tone transition value vector wallpaper white