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435
Adobe Photoshop Help
Preparing Graphics for the Web
Using Help
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Contents
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Index
Back
435
To view a discontiguous group of colors, press Ctrl (Windows) or Command (Mac OS) and
click each color that you want to select, and hold the mouse button down on any color in
the group.
To deselect all colors:
Choose Deselect All Colors from the Color Table palette menu.
Shifting colors
You can change a selected color in the color table to any other RGB color value. When you
regenerate the optimized image, the selected color changes to the new color wherever it
appears in the image.
To shift a color:
1
Double-click the color in the color table to display the default color picker.
2
Select a color.
The original color appears at the upper left of the color swatch and the new color at the
lower right. The small square at the lower right of the color swatch indicates that the color
is locked. If you shift to a Web-safe color, a small white diamond appears at the center of
the swatch.
To revert shifted colors to their original colors:
Do one of the following:
•
Double-click the swatch for the shifted color. The original color is selected in the color
picker. Click OK to restore the color.
•
To revert all shifted colors in a color table (including Web-shifted colors), choose Unshift
All Colors from the Color Table palette menu.
Shifting to Web-safe colors
To protect colors from dithering in a browser, you can shift the colors to their closest
equivalents in the Web palette. This ensures that the colors won’t dither when displayed in
browsers on either Windows or Macintosh operating systems capable of displaying only
256 colors.
To shift colors to the closest Web palette equivalent:
1
Select one or more colors in the optimized image or color table. (See
“Selecting colors”
on page 434
.)
2
Do one of the following:
•
Click the Web Shift button
in the Color Table palette.
•
Choose Shift Selected Colors to Web Palette from the Color Table palette menu.
The original color appears at the upper left of the color swatch and the new color at the
lower right. The small white diamond in the center of the color swatch indicates that the
color is Web-safe; the small square at the lower right of the color swatch indicates that the
color is locked.