In SAP there are screens with objects that look like
stoplights - red, yellow and green indicators. Certify doesn't really check the
"color" of the stoplights, but checks the status that is associated
with the stoplight color. Usually "red" indicates a "negative"
result, yellow "not sure", and green "OK" (those are just
examples). But by checking this information, you can verify that the
document/label is in the state that you want it to be. Remember, the red,
yellow, green is just an icon (like a gui button) with something under it (text
field / label, etc).