Bug, feature request, or proposal:

Feature Request

What is the expected behavior?

Make dialog opening with custom animation.

What is the current behavior?

Dialog just pop up on the screen

What is the use-case or motivation for changing an existing behavior?

Just Follow the Google material design guideline https://material.io/guidelines/motion/choreography.html#choreography-creation. Part Creation. I want to be able to open dialog from any point and make it expand in any direction.

Which versions of Angular, Material, OS, browsers are affected?

All