This sample is to set the fill color (single color) of the column.
Single color
color: sets the fill color, alpha: sets the transparency

ā—¸Layout
<Column3DSeries yField="Profit">
	<fill>
		<SolidColor color="0xFF5050" alpha="1"/>
	</fill>
	<stroke>
		<Stroke weight="1" color="0xFF5050"/>
	</stroke>
	<showDataEffect>
		<SeriesInterpolate/>
	</showDataEffect>
</Column3DSeries>