titlePadding property
Padding around the title.
If there is no title, no padding will be provided. Otherwise, this padding is used.
This property defaults to providing 12 pixels on the top,
16 pixels on bottom of the title. If the content
is not null, then no bottom padding is
provided (but see contentPadding). If it is null, then an extra 20
pixels of bottom padding is added to separate the title from the
actions
.
Implementation
final EdgeInsetsGeometry? titlePadding;