New features:

1. Pause the game by hitting escape key
2. Restart game from the pause menu
3. Adjust volume of music and sound effects in pause menu
4. Camera shake and particle effects

Improved:

1. Better logic for collisions and color changes
2. Game starts more smoothy with simplified setup sequences

Fixed:

1. Fixed bug where color did not match danger status
2. Fixed bug where too many orbs were spawned