A large percentage of the visible spectrum can be represented by mixing red, green, and blue (RGB) light in various proportions and intensities. These three colors are called the additive primaries. Added together, red, green, and blue light make white light. Where two colors overlap, they create cyan, magenta, or yellow.

The Adjust Brightness command lets you regulate Brightness of your image.

To Adjust Brightness of the icon:

• Choose Brightness check box at the control panel and click .

Using the corresponding scroling in this dialogue allows you regulate the icon Contrast

The Lock Check provides the uniform regulation

Example: