A simple Opacity slider for the Settings > Appearance section. When running from the AH to the Mailbox, I usually leave my crafting window open and a lot of the time, my ledger as well. It would be nice to set the windows to 75% or so while doing that. It would be even better (though more complicated) if there was a setting for them to default to say, 50% opacity, until I mouse-over that window. Thanks for the amazing program guys, keep up the great work.