Adobe 23101335 User Guide - Page 138

128 CHAPTER 4 Producing Consistent Color (Photoshop) dot gain as the amount by which the expected dot increases or decreases. For example, a 50% halftone screen may produce an actual density of 60% on the printed page, exhibiting a dot gain of 10%. The Dot Gain 10% option represents the color space that reflects the grayscale characteristics of this particular dot gain. Proof (no dot gain), and printed image (with dot gain) • You can also specify a Gray working space profile that is based on the characteristics of particular gamma. A monitor's gamma setting determines the brightness of midtones displayed by the monitor. Gray Gamma 1.8 matches the default grayscale display of Mac OS computers and is also the default grayscale space for Photoshop 4.0 and earlier. Gray Gamma 2.2 matches the default grayscale display of Windows computers. Specifying color management policies Each predefined color management configuration sets up a color management policy for the RGB, CMYK, and Grayscale color modes and displays warning messages to let you override the default policy behavior on a case-by-case basis. If desired, you can change the default policy behavior to reflect a color management workflow that you use more often. For more information on policies, see "About color management policies" on page 125. To customize color management policies: 1 In the Color Settings dialog box, under Color Management Policies, choose one of the following to set the default color management policy for each color mode: • Off if you do not want to color-manage imported or opened color data. • Preserve Embedded Profiles if you anticipate working with a mix of color-managed and non-color-managed documents, or with documents that use different profiles within the same color mode. • Convert to Working Space if you want to force all documents to use the current working space. For detailed descriptions of the default behaviors associated with each policy option, see the table following this procedure. 2 For Profile Mismatches, select either, both, or neither of the following: • Ask When Opening to display a message whenever you open a document tagged with a profile other than the current working space. You will be given the option to override the policy's default behavior. • Ask When Pasting to display a message whenever color profile mismatches occur as colors are imported into a document (via pasting, drag-anddrop, placing, and so on). You will be given the option to override the policy's default behavior.