Sets the x position (in normalized coordinates) of the legend. Defaults to *1.02* for vertical legends and defaults to *0* for horizontal legends.

Sets the legend's horizontal position anchor. This anchor binds the `x` position to the *left*, *center* or *right* of the legend. Value *auto* anchors legends to the right for `x` values greater than or equal to 2/3, anchors legends to the left for `x` values less than or equal to 1/3 and anchors legends with respect to their center otherwise.

Sets the y position (in normalized coordinates) of the legend. Defaults to *1* for vertical legends, defaults to *-0.1* for horizontal legends on graphs w/o range sliders and defaults to *1.1* for horizontal legends on graph with one or multiple range sliders.

Sets the legend's vertical position anchor This anchor binds the `y` position to the *top*, *middle* or *bottom* of the legend. Value *auto* anchors legends at their bottom for `y` values less than or equal to 1/3, anchors legends to at their top for `y` values greater than or equal to 2/3 and anchors legends with respect to their middle otherwise.

Controls persistence of legend-driven changes in trace and pie label visibility. Defaults to `layout.uirevision`.

Sets the vertical alignment of the symbols with respect to their associated text.

Determines the location of legend's title with respect to the legend items. Defaulted to *top* with `orientation` is *h*. Defaulted to *left* with `orientation` is *v*. The *top left* options could be used to expand legend area in both x and y sides.

Sets the x component of the arrow tail about the arrow head. If `axref` is `pixel`, a positive (negative) component corresponds to an arrow pointing from right to left (left to right). If `axref` is not `pixel` and is exactly the same as `xref`, this is an absolute value on that axis, like `x`, specified in the same coordinates as `xref`.

Sets the y component of the arrow tail about the arrow head. If `ayref` is `pixel`, a positive (negative) component corresponds to an arrow pointing from bottom to top (top to bottom). If `ayref` is not `pixel` and is exactly the same as `yref`, this is an absolute value on that axis, like `y`, specified in the same coordinates as `yref`.