lpha value of the brush.
		</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">brushBlur</span>:Number</code> (default = <code>0</code>)<code></code> &mdash; Blur value of the brush.
		</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td width="20px"></td><td><code><span class="label">brushType</span>:String</code> (default = <code>null</code>)<code></code> &mdash; Type of Brush
		</td></tr><tr><td class="paramSpacer">&nbsp;</td></tr><tr><td