Semaphore Screen

Simple as that, use your phone as a semaphore. See the color full-screen. Tap to switch to the next color, or long tap anywhere on the screen to switch between the different modes:

- Manual: tap on the screen to switch between the colors.
- Automatic - single: single run from Red -> Yellow -> Green
- Automatic - loop: infinite run from Red -> Yellow -> Green -> Red and so on.

You can also customize the time each color has for any of the Automatic modes by simply swiping left. To go back to the semaphore screen, simply swipe back to the right.