Fades the party and raid manager frame (that bar on the left when you are in a party or raid).
Fades in the party and raid frame manager on mouseover.
Please see the screenshots to see the result.
Install to your addon directory and login to WoW. There are no preferences. If you wish to move frames or buttons to your liking or otherwise change things around then you will have to edit the lua file.
Mouseover the left side of the screen to show the party and raid manager.
Hide the default raid frames with the built in hide button on the party and raid manager.