抽象主義
abstract
abstraction
art
artistic
background
beams
black
burst
bw
center
centric
circle
circular
colorless
concentric
confluence
conflux
converging
element
emission
geometric
geometry
grayscale
greyscale
illustration
lines
merging
midpoint
miscellaneous
monochrome
monocrome
optical
pattern
radial
radiating
radiation
radius
rays
rings
ripple
round
shape
signal
starburst
sunburst
uncolored
visual
white