3d
alert
attention
background
banner
black
blue
business
button
caution
concept
danger
dangerous
design
direction
emblem
forbidden
graphic
hazard
icon
illustration
information
isolated
label
mark
message
no
object
protection
red
render
risk
road
safety
security
sign
signal
signs
stop
street
symbol
text
traffic
transport
transportation
warning
web
white
yellow