BarGauge: Add legend support (#92449)

docs/sources/panels-visualizations/visualizations/bar-gauge/index.md

@@ -141,6 +141,10 @@ Automatically show y-axis scrollbar when there's a large amount of data.
 This option only applies when bar size is set to manual.
 {{% /admonition %}}
 
+## Legend options
+
+{{< docs/shared lookup="visualizations/legend-options-1.md" source="grafana" version="<GRAFANA_VERSION>" >}}
+
 ## Standard options
 
 {{< docs/shared lookup="visualizations/standard-options.md" source="grafana" version="<GRAFANA_VERSION>" >}}