8.5

Enter a trapping value in the Indeterminate field or choose Overprint:
• Enter a value in the Indeterminate field to control the amount of trapping that
QuarkXPress applies to object colors that are in front of indeterminate backgrounds
(multiple colors with conflicting trapping relationships).
• Choose Overprint to cause an object color to overprint an indeterminate background.
Enter a Knockout Limit value. The knockout limit is the value (expressed as a percentage
of darkness of the object color) that enables you to control the point at which an object
color knocks out a background color.
Enter an Overprint Limit value. Overprint limit is a trapping setting that allows an object
set to overprint to trap according to the Auto Amount value if the object's shade is less
than a particular percentage.
Preferences — Layout — Guides and Grid
Use the Guides and Grid pane of the Preferences dialog box (QuarkXPress/Edit menu)
to specify various default settings for guides and design grids.
The Snap Distance field enables you to change the 6-pixel default distance at which objects
snap to page guides when Snap to Guides is chosen (View menu) (range = 1 to 216,
measurement system = pixels, smallest increment = 1).
In the Guides area:
• To specify default margin and guide colors, use the Margin Color and Guide Color buttons.
• Click In Front of Content or Behind Content to specify whether ruler guides and page
guides are placed in front of or behind all items on a page.
In the Page Grid area:
• To control the minimum zoom value at which the master page grid and text box grids
become visible, enter a value in the Zoom Visibility field.
• Click In Front of Content or Behind Content to specify whether the master page grid is
placed in front of or behind all items on a page. If you click In Front of Content, you can
also specify whether the master page grid is in front of or behind guides.
Preferences — Layout — Grid Cell Fill
Use the Grid Cell Fill pane of the Preferences dialog box (QuarkXPress/Edit menu) to
control how design grid cells are filled.
When you check Show Full Cell in the Display Settings tab (see "Design grids: Display
Settings tab") for a grid style or master page grid, you can designate one of the cells in the
sequence to be filled with the color that outlines other cells in the grid. To designate the
cell number and positioning in the sequence, use the controls in the Grid Cell Fill pane
in the Preferences dialog box (QuarkXPress/Edit > Preferences):
A GUIDE TO QUARKXPRESS 8.5: PLUS EDITION | 453
PREFERENCES