mark
A mark for a plot. Refer to the mark tutorial for a list of available mark shapes and more details.
Parameters
size : length default: 4pt
The size of the mark. The built-in mark shapes are tuned to match in optical size, see mark sizing.
fill : auto | none | color | gradient | tiling default: auto
How to fill the mark. If set to auto, the fill is inherited from the
plot.
stroke : stroke default: 0.7pt
How to stroke the mark. If set to auto, the stroke is inherited from the
plot.
shape : str | function default: "."
The shape of the mark. This can be a string identifying one of the built-in marks (check out the tutorial) or a function that takes a mark and produces content.