action
activity
answer
approve
banner
business
cancel
check
checkmark
choice
confirm
correct
decision
deny
design
document
education
error
exam
fail
false
grunge
icon
illustration
inappropriate
incorrect
ink
isolated
mark
mistake
no
red
reject
report
result
retro
rubber
sign
stamp
student
survey
symbol
tag
test
vintage
vote
word
wrong
x