Soften Back buttons in Menus#254

Currently, one has to completely hold the B button to exit a screen such as training that feels like it takes a bit longer than it should and is harsh on releasing early.

Can the padding and softness of the navigations with Back in particular be updated to make navigating through menus smoother?

If the Back button threshold were lower and the animation nonlinear (ease-in-out or cubic transitions), it would be an absolutely lovely enhancement.

Thanks!