Wijmo gauges are composed of Range objects. By default, ranges appear as part of the gauge background. This way you can show 'zones' within the gauge, like 'good', 'average', and 'bad' for example.
If you set the gauge's showRanges property to false, the additional ranges are not shown. Instead, they are used to automatically set the color of the pointer based on the current gauge value.
This example uses React.