Every time you open a new tab, you will get a different HD wallpaper for the portal. This new theme includes clock and more.
Portal is a first-person shooter/puzzle game developed by Valve.
Here's a list of other features you'll get:
- To-do list
- Set your favorite wallpapers
- Discover new hot spots
- Bookmarks
- Social network notifications
- High quality wallpaper for each new label
- Clock showing date and time
- Weather widget
- Open to search