Controls the orientation of the text inside chart sectors. When set to *auto*, text may be oriented in any direction in order to be as big as possible in the middle of a sector. The *horizontal* option orients text to be parallel with the bottom of the chart, and may make text smaller in order to achieve that goal. The *radial* option orients text along the radius of the sector. The *tangential* option orients text perpendicular to the radius of the sector.

Sets the font used for `textinfo` lying outside the sector.

Sets the fraction of larger radius to pull the sectors out from the center. This can be a constant to pull all slices apart from each other equally or an array to highlight one or more slices.

Sets the source reference on Chart Studio Cloud for `pull`.

Instead of the first slice starting at 12 o'clock, rotate to some other angle.

If there are multiple pie charts that should be sized according to their totals, link them by providing a non-empty group id here shared by every trace in the same group.

Template string used for rendering the information text that appear on points. Note that this will override `textinfo`. Variables are inserted using %{variable}, for example "y: %{y}". Numbers are formatted using d3-format's syntax %{variable:d3-format}, for example "Price: %{y:$.2f}". https://github.com/d3/d3-format/tree/v1.4.5#d3-format for details on the formatting syntax. Dates are formatted using d3-time-format's syntax %{variable|d3-time-format}, for example "Day: %{2019-01-01|%A}". https://github.com/d3/d3-time-format/tree/v2.2.3#locale_format for details on the date formatting syntax. Every attributes that can be specified per-point (the ones that are `arrayOk: true`) are available. variables `label`, `color`, `value`, `percent` and `text`.

If `true`, the pie slice colors (whether given by `piecolorway` or inherited from `colorway`) will be extended to three times its original length by first repeating every color 20% lighter then each color 20% darker. This is intended to reduce the likelihood of reusing the same color when you have many slices, but you can set `false` to disable. Colors provided in the trace, using `marker.colors`, are never extended.