抽象主義
abstract
art
back
backdrop
background
black
bw
circular
colorless
distortion
drop
eddy
graphic
grayscale
greyscale
ground
gyration
gyre
helix
illustration
minimal
misc
miscellaneous
monochrome
monocrome
op
opart
optical
patern
pattern
quadrate
rotary
rotating
rotation
spiral
square
surreal
swirl
texture
torsion
twirl
twist
uncolored
visual
vortex
whirl
whirlpool
white