Sets the font used for `title`. Note that the title's font used to be set by the now deprecated `titlefont` attribute.

Specifies the location of the `title`. Note that the title's position used to be set by the now deprecated `titleposition` attribute.

Sets the title of the chart. If it is empty, no title is displayed. Note that before the existence of `title.text`, the title's contents used to be defined as the `title` attribute itself. This behavior has been deprecated.

Sets the values of the sectors. If omitted, we count occurrences of each label.

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

If `true`, the funnelarea slice colors (whether given by `funnelareacolorway` 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.

Sets the default funnelarea slice colors. Defaults to the main `colorway` used for trace colors. If you specify a new list here it can still be extended with lighter and darker colors, see `extendfunnelareacolors`.

hiddenlabels is the funnelarea & pie chart analog of visible:'legendonly' but it can contain many labels, and can simultaneously hide slices from several pies/funnelarea charts

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

Visualize stages in a process using area-encoded trapezoids. This trace can be used to show data in a part-to-whole representation similar to a "pie" trace, wherein each item appears in a single stage. See also the "funnel" trace type for a different approach to visualizing funnel data.

Determines whether or not gaps (i.e. {nan} or missing values) in the `z` data are filled in. It is defaulted to true if `z` is a one dimensional array and `zsmooth` is not false; otherwise it is defaulted to false.