New property for GIFBUILDER BOX object allows opacity to be defined, and set to anywhere from 0 (transparent) to 100 (opaque).
Ex:
…
10 = IMAGE
10 {
file = GIFBUILDER
file {
…
20 = BOX
20 {
color = red
opacity = 50
}
}
…
More info:
RFC #11264: Add an opacity option to the GIFBUILDER BOX object
http://bugs.typo3.org/view.php?id=11264