abstract
backgrounds
cell
construct
construction
curve
design
designer
detail
diagram
dot
dotted line
draft
drafting
draw
drawing
elements
engineer
engineering
figure
frame
geometrical
geometry
graphic
idea
illustration
image
letter
line
linear
measure
measurement
number
pattern
plantes
project
ring
shape
sketch
spiral
structure
style
symbol
technic
technical
technology
textured
twirl