By using a simple keyboard combination, you can change the background effect for Launchpad to make it more to your liking. The effects include either color or black and white versions of normal or blurred.
1. Open Launchpad
2. Press Command+B on your keyboard. The background effect will change. Repeat the key combination to find the effect that you are looking for. These effects include: black and white normal, black and white blurred, color normal, and color blurred.
Black & White Normal
Black & White Blurred