User Guide

CHAPTER5
Layers
5.1 What are Layers?
Layers When you create an image, it is made up of thousands of tiny pixels, each of
which has a color, position, and form the image. It can be hard to work on an image
organized at this level. It is also hard to work on an entire image as one block – this is
the reason for layers. Layers are in between the tiny size of pixels and the large size of
the whole image.
Using layers, you can construct an image of several conceptual parts which can be
manipulated without affecting any other part of the image. Layers are stacked on top of
each other. The bottom layer is the background of the image and then components in
the foreground of the image come above it. Layers can be made to affect the look of
layers below them. If, for example, a layer is made translucent, layers underneath will
look faded without layer being altered at all. If the translucent layer is later removed, the
image below returns to how it looked before.
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