Data colors Conditional formatting for Charts with Legend split

We are missing the Data colors Conditional formatting based on Field value, when a Legend split is used.

Example
Report: CO2 emissions by Country by Year

Requirement: the Color to stick to the Country, since it visually associates the user with the content.
Data colors Conditional formatting for now provides this only when the Country is plotted on the axis as stand alone.


Chart Type: Stacked Column
X axis: Years with Legend split by Country
Y axis, Value: CO2 emissions

Data Points:
[
{"Country":"US", "Color":"#B22234", "Year":2017, "CO2":100},
{"Country":"US", "Color":"#B22234", "Year":2018, "CO2":102},
{"Country":"US", "Color":"#B22234", "Year":2019, "CO2":105},
{"Country":"UK", "Color":"#00247d", "Year":2017, "CO2":30},
{"Country":"UK", "Color":"#00247d", "Year":2018, "CO2":32},
{"Country":"UK", "Color":"#00247d", "Year":2019, "CO2":35},
{"Country":"China", "Color":"#DE2910", "Year":2017, "CO2":130},
{"Country":"China", "Color":"#DE2910", "Year":2018, "CO2":132},
{"Country":"China", "Color":"#DE2910", "Year":2019, "CO2":135},
]

Using the with Country split in Legend disables the Data colors Conditional formatting.