You can view slices in Photoshop and the Save For Web & Devices dialog box. The following characteristics can help you identify and differentiate between slices:
In addition, the Save For Web & Devices dialog box uses color adjustments to dim unselected slices. These adjustments are for display purposes only and do not affect the color of the final image. By default, the color adjustment for auto slices is twice the amount of that for user slices.
from
left to right and top to bottom, beginning in the upper left corner
of the image. If you change the arrangement or total number of slices,
slice numbers are updated to reflect the new order.
Show or hide slice boundaries
Choose View > Show >
Slices. To hide and show slices along with other items, use the
Extras command. See Show or hide Extras.
Show or hide auto slices
Do one of the following:Select the Slice Select tool, and click Show Auto Slices or Hide Auto Slices in the options bar.
Choose View > Show > Slices. Auto slices appear with the rest of your slices.
Show or hide slice numbersIn Windows, choose Edit > Preferences > Guides, Grid, Slices & Count.
In Mac OS, choose Photoshop > Preferences > Guides, Grid, Slices & Count.
Change the color of slice lines