Conditional Formatting Line Chart

I agree that this is a very strange missing function , and only 12 votes so far? I hope there will be a longer standing version of this idea with many more votes as well, off to find it now

I also cant understand why such basic, and badly needed functionality still does not exists. Setting line colors manually in every single chart is very inefficient, we need to be able to apply colors autmatically based on calculated measure and data existing in the model (in example: I would like to use my color coding dictionary table which defines which color should always be used for each brand, but I cant do it currently).

See similar idea https://ideas.powerbi.com/ideas/idea/?ideaid=bf62a5fa-d376-ed11-a76e-281878bd0909