I see that plotly v4 (v4.14.3, to be exact) is supported now with Anvil, but the autocomplete still seems to be referring to plotly v3. Attached is a screenshot that lists the properties of a Plotly object from v3 - it displays documentation from the graph_objs package (which is now graph_objects in v4).
Setting attributes just as one would with v4 works, but the autocomplete can confuse newbies starting with plotting and referring to Anvil and Plotly documentation.
Please let me know if more information is needed.
