up RCDATA "up.png"
down RCDATA "down.png"
open RCDATA "open.png"
closed RCData "closed.png"
check_unchecked RCDATA "check_unchecked.png"
check_checked RCDATA "check_checked.png"
radio_unchecked RCDATA "radio_unchecked.png"
radio_checked RCDATA "radio_checked.png"