The title should always refer to the previous clicked call to action or to the different possible actions.
Its background is full width to keep the user focused and save space.
On the content zone will be displayed a set of actions : the best practice is text associated with icons.
The modal always opens above an overlay, letting the user see that opening the modal bottom sheet has no impact on content behind.
Don’t forget to provide a quick way to close the bottom sheet with a close option down below the actions.