Google's Material 3 Expressive style is being integrated into Gmail, featuring a new interface with lighter, raised cards and rounded edges that enhance visual appeal. The design includes a vibrant color palette, making emails appear more layered and engaging. The rollout is gradual, with some users experiencing changes like the account switcher moving out of the search bar, while others have not yet seen this update. Additionally, a new pill-shaped button animation has been introduced for swipes, providing a fluid user experience with haptic feedback during notification dismissals.