Colorful: Eye Test Challenge description

Colorful is a fun and stimulating game that can test the capability of your eyes to detect slight differences in colors, and also serves as a test for color blindness of different degrees.

Each game round displays a number of tiles with identical color, except one, which is slightly different colored. Find it, and click it! If you are right, you gain points and a new set of colors. If you are wrong, you can try again, but you also loose a heart. Once you loose all hearts, the game ends with a final score. Guessing 3 rounds in a row rewards you with one extra heart.

To increase your scores and earn special daily achievements you may change the difficulty by:
- increasing the number of tiles
- reducing the color difference between tiles
- reducing the time limit per round
- reducing the maximum hearts you can store

Good luck!