Transparent Floating Windows
Source Insight supports semi-transparent floating windows. This makes the floating windows a little like a HUD (Heads Up Display) in a game.
If you are using Windows 2000 or Windows XP, which supports translucent window modes, then the floating windows will also have a button to toggle the window’s transparency.
When a window is transparent, you can also click through it to the text below it, as long as you are not clicking inside an object within the floating window.