2018

COLOR, OPACITY, AND DROP SHADOWS
A Guide to QuarkXPress 2018 | 297
To specify opacity for a picture, enter a value in the Opacity field of the Picture
Box tab of the Measurements palette.
Specifying opacity for groups
Keep in mind that when you stack items of varying opacities, the colors are
combined and may produce a buildup of ink. For example, if you place a yellow box
with a 30% opacity in front of a cyan box with 100% opacity, the box in front will
become slightly greenish.
You can control this by grouping items and specifying a group opacity rather than
individual item opacities. To do this, on Windows, use the Group Opacity field in
the the Home tab of the Measurements palette. Depending on the effect you want,
you may need to revert the Opacity field for the individual items to 100%
(otherwise, each item’s opacity is added to the group’s opacity).
With these three grouped items, compare individual item opacity to group opacity. At
left, each item is 50% opaque — the items in front compose against the items behind
them. At right, each item’s opacity is 100% while the group’s opacity is 50% — the entire
group composes against the background. The items in the group, however, could have
individual opacities in addition to the group opacity.
Creating blends with transparency
You can blend a color with None rather than just with white. Simply choose any
color with 0% opacity for the first or second color in a gradient in the Gradients
palette, or on Windows, you can use the Box tab of the Mmeasurements palette.
Color management
QuarkXPress addresses the issue of producing predictable color with ICC-based color
management tools that require little input from users. For color experts, however,
QuarkXPress provides control over every aspect of color management. In addition
to streamlining the implementation of color management, QuarkXPress offers true
soft proofing through previews that simulate output on various devices.
Source setups and output setups
The color management implementation in QuarkXPress allows color experts to
create and fine-tune “packages” of color management settings called source setups
and output setups. The source setups individually specify profiles and rendering
intents for solid colors and images in RGB, CMYK, LAB, and grayscale color spaces;