Default Keyboard fade in/out effect

Hey guys,

I was wondering if you guys know of any way to be able to make the keyboard appear/disappear with a fade/smooth effect. I have SwiftKey and when I have to type it just appears with no effect and disappears with no effect. I want to make it look better and smoother, is there any mod or something I can do to make that happen? My friend has a stock Sprint S4 and her Swiftkey keyboard does that. Any help would be appreciated!