VEGA Lite, How to create separate Legends for concatenated charts

I am trying to create a visualization of multiple stacked bar graphs and I want to have each chart use its own legend, the problem is that the legend generated by Vegalite for each graph contains all fields, even the ones not present on that particular graph. { "$schema": "https://vega.github.io/schema/vega-lite/v5.json", "description": "A dashboard with cross-highlighting.",… Read More VEGA Lite, How to create separate Legends for concatenated charts