User Guide

Chapter 5: Painting And Image Editing
3. Choose a color-distribution option in the Dither area:
None Changes colors to their closest equivalent in the selected color table
without dithering.
Pattern Approximates colors not in the palette by arranging palette color in
geometric patterns (available for Uniform/System method only).
Diffusion Approximates non-palette colors by randomly dithering available
colors; creates the most natural effect.
4. Click OK after choosing the settings you want.
If you select the Custom option, the Color Table dialog box appears (see "To create a custom
color table for Indexed images:" on page 439).
To create a custom color table for Indexed images:
1. Select “Custom” in the Indexed Color dialog box (see "Indexed image mode" on page 438).
If the image is already Indexed, choose Image | Mode | Color Table to open the Color
Table dialog box.
2. Click OK.
3. In the Color Table dialog box, edit the settings.
You can edit individual colors in the palette, create a blend of colors, and select from several preset
color palettes, including System and Grayscale palettes. In addition, palettes can be saved or loaded.
In the Color Table dialog box, a grid of 256 color swatches appears; each swatch represents one
color in the palette. By default, the Custom option appears in the Table menu, and the color swatches
show the last palette used in the dialog box.
The Table menu lets you choose among preset color tables:
Black Body A range of sunset-like colors.
Grayscale A ramp from pure black to pure white.
Macintosh System The palette of colors supported by Macintosh.
Spectrum A set of rainbow colors.
Web Browser A set of 216 colors that can be displayed without dithering by nearly all
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