scattermapbox [#5827],
with thanks to @elben10 for the contribution!angle, angleref and standoff to marker and add backoff to line; also introduce new arrow symbols to facilitate drawing networks [#6297]minreducedwidth and minreducedheight to layout for increasing control over automargin [#6307]entrywidth and entrywidthmode to legend [#6202, #6324]sankey links with arrowsselections, newselection and activeselection layout attributes to have persistent and editable selections over cartesian subplotsunselected.line.color and unselected.line.opacity options to parcoords trace