Black to White

=== About ===
"Black to White - a brightness perception training game" is a simple game for beginners training for shade gradation sensitivity and observation.

=== How to play ===
The game is divided into two parts, before the the game starts, remember the color and the value on menu.

First stage: Touch from the darkest to the lightest
Second stage: Touch the color's value

Hint: Hint will appear after three seconds when you are idle.

=== Feature ===
Supports tablet and phone, simple operation
Let's challenge the fastest speed!

(This game can also be a simple piano)