Illustrator CS4 for Windows and Macintosh: Visual QuickStart Guide

Chapter 27. Transparency

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Changing an object’s opacity or blending mode	331
Controlling which objects the transparency settings affect	334
Using the transparency grid	336

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Objects have different densities depending on the type of material they’re made of, and may look different depending on how much light is filtering through or reflecting off them. Study an object on your desk for a minute, such as a lamp or a beverage in a glass. You might say “The shade is white” when you describe it simply, but on closer inspection, you may notice that rather than being a dense, uniform color, it contains various permutations ...