The ability to provide specify the Data Colour for each item in the Legend field. E.g. a column from the data source in which to specify the colour e.g. #A66999 for each item in the Legend field. This would apply to all the standard charts, e.g. bar, column, line chart, any of the charts with the Legend property.
Hi - I have been testing out this capability, and although it can be applied to some visuals, not all of the built in visuals can be controlled in this way. The visuals that don't have colour control by field are: Stacked Area Chart, Line Chart, Pie Chart, Area Chart, Donut Chart. I can see all the top line visuals do have this control including the bar and columns charts, but this is not complete.
Agreed...this can't be considered 'complete' while standard charts like line charts don't currently support this as at Nov 2019. Also, there should be an option to set the color of ALL series directly from the UI, while still allowing us to override on a series-by-series basis as we can in Line charts for line thickness.
As noted by others not all visuals support conditional formatting. I also think the ask is to be able to do this in the 'fields" view. Drop a column into a Color Values box. When you have a multi-page report with 4 to 7 Line and stacked column charts per page, it takes significant time to update all of them.