This ribbon displays when you open these commands:
Ellipse by 3 Points Command
Ellipse by Center Point Command
Style
Sets the drawing style.
Line Color
Sets the drawing color. You can select More to define custom colors with the Colors dialog.
Line Type
Sets the drawing line type and style.
Line Width
Sets the line width.
Primary
Sets the length from the center point to the edge of the ellipse along the primary axis.
The ellipse orientation is based on the primary axis.
Secondary
Sets the length from the center point to the edge of the ellipse along the secondary axis.
The secondary axis is perpendicular to the primary axis.
Angle
Sets the angle of the primary axis of the ellipse. Zero degrees is horizontal to the X axis. The angle increases in the counterclockwise direction.