Using  or  will always result in a clear background color. As a result, use  instead. Fixes #2.
Merge pull request #9 from knickmack/add-game-place-input-container-view-controller-background

Using `UIViewAnimationOptionTransitionFlipFromLeft`  or `UIViewAnimationOptionTransitionFlipFromRight`  will always result in a clear background color. As a result, ...