activity
american
app
art
ball
baseball
basketball
billiards
bowling
collection
competition
croquet
darts
design
drawing
drawn
element
flat
flight
football
game
goal
golf
graphic
hand
hockey
icon
illustration
isolated
kick
leisure
line
linear
match
monochrome
object
play
rugby
set
sign
silhouette
soccer
sport
style
tennis
volleyball