As default SystemOptions>>OEE>Downtime Statistics settings will be used

You can specify the outlook of the BarChart for the DownTime Statistics, by double clicking the chart or with the editor toolbar.
Plsase do not remove the sample chart series from the chart itself.

You can specify the outlook of the WaterFall chart
Production Bar Color: the color of the series with the real production times/volumes.
BDP Bar Color: the color of the series with the Base (BDP, theoretical) calculations