This sample is to display the range of values that need to be monitored. 
It is useful to check if values are in the range.

ā—¸Layout
<backgroundElements>
	<GridLines/>
	<AxisMarker>
		<ranges>
			<AxisRange startValue="1600" endValue="2800" 
			label="Area" labelHorizontalAlign="left">
				<fill>
					<SolidColor color="#B7F0B1" alpha="0.6"/>
				</fill>
			</AxisRange>
		</ranges>
	</AxisMarker>
</backgroundElements>