A new customization feature coming in version 3.1 (which was available to beta users from last week) is the ability to select the transition animation for switching to the app drawer and back to the homescreen.
Looking for an easier way to launch apps on Android Wear? Here is Wear Mini Launcher
Wear Mini Launcher is an easier way to launch your apps on your new Android Wear powered devices. Expediting app launching by providing an edge gesture slide over with links to all of your favorite apps.