英文關鍵字
abstract
animated
animation
art
attention
backdrop
background
black
caution
circular
color
concept
danger
design
escher
geometric
graphic
hazard
hypnosis
hypnotic
illusion
impossible
loop
loopable
looping
magic
motion
moving
optic
optical
pattern
perspective
psychedelic
radial
safety
seamless
security
shape
spiral
strip
swirl
texture
tunnel
vertigo
wall
warning
warp
yellow