Editor: Interactive handles for editing primitive Collider types in the Scene view now all use the same logic:

Drag a handle to expand the size only on that side.

Hold <Alt> to pin the center in place.

Hold <Shift> to scale the shape uniformly.

These changes apply to BoxCollider, CapsuleCollider, SphereCollider, BoxCollider2D, CapsuleCollider2D, and CircleCollider2D.