deformation
angular
apex
black
corrugated
crease
criss cross
crisscross
deform
deformity
design
distort
distortion
edge
edgy
element
geometric
geometrical
geometry
horizontal
irregular
jagged
lineal
linear
lines
monochrome
parallel
pattern
peak
pointy
ridge
serrated
shape
sharp
shrill
spike
spiky
spine
strain
streaks
stress
stripes
strips
taper
tapering
texture
triangular
white
zig zag
zigzag