You will notice in the Control Panel settings where there is a tab for "System Tools". Click on it and a drop down menu will appear where you will be able to choose from a variety of options such as "taskbar customization", "setting system tray", "taskbar position", "setting a shortcut for desktop", "hide desktop icon", "increased border widths", "taskbar size", "stack toggling" and many more. You can change the different options as well as how transparent or dark the background of the system tray will be. The bottom right corner of the screen shows an animated system tray that will guide you as you drag and drop windows into the correct position on your desktop.
There is a special Hotkey that will automatically bring up the System Tray when you click on it. Once you have used the Hotkey for a certain amount of time it will automatically switch to the System Tray, and you can simply use another preset hotkey to bring up the window again if you want to. One nice feature of Blacktops that I really like is that there is a volume slider for your music play, and there is also a volume slider for your video play/pause. I also find this feature to be extremely useful when watching movies on blu-ray. There is even an uninstall option if you decide that you would prefer not to use this awesome add-on.