[Refactor] Reorder properties in legend parse alphabetically (#4966)
[Refactor] Reorder properties in legend parse alphabetically (#4966)


vega/vega-lite,vega/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite,uwdata/vega-lite,vega/vega-lite,uwdata/vega-lite,uwdata/vega-lite,uwdata/vega-lite