I'm using the Chameleon theme in 1.6x beta 5, and I get the transparent pop-up on the mini calendar. I looked in Styles.php and couldn't find a class reference for the pop-up. I couldn't find it in either of the styles.css files either.
Can anyone point me to the place where this class can be styled to be opaque (or at least more opaque)?
P.S. The beta seems to run like a stable production piece so far