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Lesson 16. Optimizing Web Images > Locking colors to preserve image details

Locking colors to preserve image details

In the previous procedures, you saw how reducing the number of colors can compromise details in an illustration, even after you add dithering. You’ll now learn how to lock specific colors to ensure that those colors do not drop out of the reduced palette.

As you begin this work, make sure that the Optimize palette shows Perceptual, 128 colors, and Diffusion dithering set at 100%.


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