Intent
I want to add markers with different symbols to my plotly graph object Scattermap.

What I've tried

• Naming symbols with square, circle, diamond etc. This works but color is not supported for these basic objects apart from circle.
• Maki symbols

Issues

• The documentation refers to maki symbols: https://plotly.com/python-api-reference/generated/plotly.graph_objects.Scattermap.html#plotly.graph_objects.scattermap.Marker.symbol
  but the link is broken. I found a separate reference to maki icons here - https://iconduck.com/sets/mapbox-maki-icons but can't get any of them to plot (have tried setting mode="markers", prefixing the symbol name with "maki-" and so on).

• Plotly deprecated mapbox maps, which maki symbols depend on, and have moved to maplibre (https://plotly.com/python/mapbox-to-maplibre/). However there is no updated documentation on how to use marker symbols in plotly with a maplibre backdrop.

• Other issues about this from 5-6 years ago are open referencing issues with symbol rendering on mapbox maps and suggesting fixes such as creating a mapbox account; generating public API keys; and only using supported themes. However these fixes do not apply to maplibre. (Some Scattermapbox Symbols Not Available #1804 ; add custom symbols for scattermapbox #2954 )

Suggested Fix
Update the documentation to show:

1. How to add symbols to a graph_objects.Scattermap figure using out-of-the-box symbols
2. How to add custom symbols to a graph_objects.Scattermap figure