Sets default for all colors associated with this axis all at once: line, font, tick, and grid colors. Grid color is lightened by blending this with the plot background Individual pieces can override this.

Sets the direction corresponding to positive angles.

Sets the width (in px) of the grid lines.

Sets the hover text formatting rule using d3 formatting mini-languages which are very similar to those in Python. For numbers, see: https://github.com/d3/d3-format/tree/v1.4.5#d3-format. And for dates see: https://github.com/d3/d3-time-format/tree/v2.2.3#locale_format. We add two items to d3's date formatter: *%h* for half of the year as a decimal number as well as *%{n}f* for fractional seconds with n digits. For example, *2016-10-13 09:15:23.456* with tickformat *%H~%M~%S.%2f* would display *09~15~23.46*

Sets the layer on which this axis is displayed. If *above traces*, this axis is displayed above all the subplot's traces If *below traces*, this axis is displayed below all the subplot's traces, but above the grid lines. Useful when used together with scatter-like traces with `cliponaxis` set to *false* to show markers and/or text nodes above this axis.

Set the angular period. Has an effect only when `angularaxis.type` is *category*.

Sets that start position (in degrees) of the angular axis By default, polar subplots with `direction` set to *counterclockwise* get a `rotation` of *0* which corresponds to due East (like what mathematicians prefer). In turn, polar with `direction` set to *clockwise* get a rotation of *90* which corresponds to due North (like on a compass),

Determines whether or not grid lines are drawn. If *true*, the grid lines are drawn at every tick mark.

Determines whether or not a line bounding this axis is drawn.

Sets the format unit of the formatted *theta* values. Has an effect only when `angularaxis.type` is *linear*.

Sets the angular axis type. If *linear*, set `thetaunit` to determine the unit in which axis value are shown. If *category, use `period` to set the number of integer coordinates around polar axis.