Rainbow Brush lets you quickly and easily give photos a dramatic look by converting them to black and white, while keeping your chosen details in color. This effect draws the viewer's attention to the colored areas, creating striking images. With its intuitive and responsive user interface, RainbowBrush is super easy and fun to use. You simply use your finger as a brush to remove or bring back the original color from regions of your image. Image zooming will help you to work on fine details.