Keyboard Color is a GO Keyboard theme to fill your keyboard with lots of bright, bold colors. It's important to note that this is a theme for GO Keyboard and not an independent app, so you need GO Keyboard already installed if you want to use it.
As usual for these sorts of keyboards, Keyboard Color has several different keyboard layouts. Some help you type more quickly, while others make it easier to enter numbers. And, again as usual, there's an emoji button for easy access.
Keyboard Color is a good theme for customizing your Android by adding a touch of color to any device. It doesn't have any particularly astounding features, but it's nice to look at.