C1GaugeEllipse is the simplest shape. When filling the ellipse with radial gradient set the gradient's Direction property to RadialInner. If the Width (Height) property is positive it uses the same logical coordinates as gauge pointers and decorators. If the Width (Height) property is negative its value specifies the portion of the owner element's width (or height). So, -1 is the whole width (height) of the owner element, -2 is double width (height) of the owner element, and so on.

[Settings for this shape: Width = -1, Height = -0.6, RotateAngle = 20]