selfImDrawList handle on which this method operates.
centerShape center in absolute screen coordinates.
radiusCircle or arc radius in screen pixels.
a_min_of_12Start/end angle in twelfths of a circle: 0 is right, 3 down, 6 left, and 9 up.
a_max_of_12Start/end angle in twelfths of a circle: 0 is right, 3 down, 6 left, and 9 up.
Append a circular arc using precomputed angles.