<itemvalue="The size that this [CustomPaint] should aim for, given the layout constraints, if there is no child. Defaults to [Size.zero]. If there's a child, this is ignored, and the size of the child is used instead."/>
<itemvalue="The size that this [CustomPaint] should aim for, given the layout constraints, if there is no child. Defaults to [Size.zero]. If there's a child, this is ignored, and the size of the child is used instead."/>