A floating action button (FAB) performs the primary, or most common, action on a screen.
It appears in front of all screen content, typically as a circular shape with an icon in its center.
Also receives all Button props.
Change the color of the FAB.
FAB placement at bottom, (optional) use
style in case of custom placement.
|"left" or "right"||None|
Change Size of FAB.
|"small" or "large"||large|
//FIXME: not in doc but available in examples
Style for FAB
Transform Extended Label text to uppercase.
Decide the visibility of the FAB.