Adobe illustrator 10 Manuale Utente

Using the Color Table palette menu Click the triangle   in the right corner of the Color 
Table palette.

Sorting the color table Choose a sorting command from the Color Table palette menu. 
You can sort colors by hue (neutral colors are assigned a hue of 0 and located with the 
reds), luminance (the lightness or brightness of a color), or popularity, making it easier to 
see an image’s color range and locate particular colors. 

Adding new colors Select the eyedropper tool, and click on a color in the image. (Alter-
natively, click the color selection box, and use the color picker to select a color.) Then, click 
the New Color button  , or choose New Color from the Color Table palette menu. A small 
white square with a dark center appears in the lower right corner of the new color, 
indicating that the color is locked. 

Selecting colors To select a color in the image, select the eyedropper tool  , and click a 
color in the image. A white border appears around that color in the Color Table palette. To 
select a color in the Color Table palette, click the color. To select a contiguous group of 
colors, press Shift and click another color. All colors in the rows between the first and 
second selected colors are selected. To select a discontiguous group of colors, press Ctrl 
(Windows) or Command (Mac OS) and click each color that you want to select. 

The Color Table palette menu also provides commands for selecting colors.

Editing colors Double-click the color in the Color Table palette to display the default 
color picker, and then select a color. A small plus sign appears in the center of each edited 
color. 

Shifting to Web-safe colors Select the colors you want to shift, and click the Web Shift 
button   in the Color Table palette. (Alternatively, choose Web Shift/Unshift Selected 
Colors from the Color Table palette menu.) A small white diamond appears in the center of 
selected colors that have been Web-shifted (and in all Web-safe colors). Shifting colors 
prevents them from dithering in a browser. 

Once you’ve shifted colors, you can restore them to their original values using commands 
in the Color Table palette menu. Choose Web Shift/Unshift Selected Colors or Unshift All 
Colors. Alternatively, select a Web-shifted color, and click the Web Shift button   to revert 
it. To specify a tolerance for shifting colors, specify a value for Web Snap in the Settings 
panel of the Save for Web dialog box. A higher value shifts more colors. 

Deleting colors  Click the Trash button or choose Delete Color from the Color Table 
palette menu. When you delete a color, areas of the optimized image that previously 
included that color are rerendered using the closest color remaining in the palette.

Locking and unlocking colors Click the Lock button  , or choose Lock/Unlock Selected 
Colors from the Color Table palette menu. A white square with a red center appears in the 
lower right corner of each locked color. Locking colors prevents them from being dropped 
or dithered if you reduce the number of colors in the image.