2D Editor Toolbar

The 2D Editor toolbar is used to display and hide the color channels. This is helpful when you want to remove certain parts of an image. The red, green, and blue channels are always active by default. The Alpha Channel button only becomes active if an alpha channel is present within the file. All images also have three channels: one red, one green, and one blue. Each channel is a representation of the image in a single hue. The pixels in the red channel are all some value of red between 0.0 (no red) and 1.0 (full red). The image you see when you import a graphic is the combination of the three channels into one color composite. While RGB values represent color, the alpha channel is an additional part of the image that usually describes transparency. 32-bit graphics systems contain four channels - three 8-bit channels for red, green, and blue (RGB) and one 8-bit alpha channel.

To display the 2D Editor toolbar, do one of the following:

• Choose Menu bar  Window  Toolbars  2D Editor

• Right-click menu bar and choose 2D Editor

• In the Customize Layout window, choose Toolbars and select 2D Editor checkbox