colorFilter.html">Paint.colorFilter</a> and <a href="../../dart-ui/Paint/blendMode.html">Paint.blendMode</a>
applied.</p>
<p>This lets you create composite effects, for example making a group of
drawing commands semi-transparent. Without using <a href="../../dart-ui/Canvas/saveLayer.html">saveLayer</a>, each part of
the group would be painted individually, so where they overlap would be
darker than where they do not. By using <a href="../../dart-ui/Canvas/saveLayer.html">saveLayer</a> to group them
together