Adobe PHOTOSHOP 6.0 Manual page 345

To shift colors to the closest Web palette equivalent:
Select one or more colors in the optimized
1
image or color table. (See "Selecting colors" on
page 333.)
Do one of the following:
2
Click the Web Shift button ( ) in the Color
•
Table panel/palette.
Choose Web Shift/Unshift Selected Colors from
•
the Color Table palette menu.
A small white diamond ( ) appears in the center
of a Web-shifted color and in all Web-safe colors.
To revert Web-shifted colors to their original colors:
Do one of the following:
Select a Web-shifted color in the color table and
•
click the Web Shift button ( ) in the Color Table
panel/palette.
Choose Unshift All Colors from the Color Table
•
palette menu.
To specify tolerance for shifting colors automatically
to the closest Web palette equivalents:
In the Optimize panel/palette, enter a value for
Web Snap or drag the pop-up slider. A higher
value shifts more colors. (See "Previewing and
controlling dithering" on page 341.)
(In ImageReady, click the Show Options
control ( ) on the Optimize palette tab or
choose Show Options from the Optimize palette
menu to view the Web Snap option.)
Locking colors in the color table
You can lock selected colors in the color table to
prevent them from being dropped when the
number of colors is reduced and to prevent them
from dithering in the application.
Note: Locking colors does not prevent them from
dithering in a browser. (See "Previewing and
controlling dithering" on page 341.)
To lock a color:
Select one or more colors in the color table.
1
(See "Selecting colors" on page 333.)
Lock the color:
2
Click the Lock button ( ).
•
Choose Lock/Unlock Selected Colors from the
•
Color Table palette menu.
A white square ( ) appears in the lower right
corner of each locked color.
Note: If the selected colors include both locked and
unlocked colors, all colors will be locked.
To unlock a color:
Click the locked color to select it.
1
2 Unlock the color:
• Click the Lock button ( ).
• Choose Lock/Unlock Selected Colors from the
Color Table palette menu.
The white square disappears from the color
swatch.
ADOBE PHOTOSHOP 6.0 335
User Guide