Add 'hovertext' attribute to all traces that support hover 'text' #3553
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resolves #3450 (the backward-compatible part of that issue that is)
This PR add
hovertextto all traces that currently make use of thetextattribute to add content to the hover labels. This makehovertextstandard across all traces that support hover, including for traces that support on-graph text.Note that if
textandhovertextare present in the same trace,hovertextwins out.cc @plotly/plotly_js and @nicolaskruchten