Guido_Beulen , Not very clear, But you can create a measure based on SELECTEDVALUE([Area Manager]), and use that in conditional formatting
example
How to do conditional formatting by measure and apply it on pie?
https://www.youtube.com/watch?v=RqBb5eBf_I4&list=PLPaNVDMhUXGYo50Ajmr4SgSV9HIQLxc8L
https://community.powerbi.com/t5/Community-Blog/Power-BI-Conditional-formatting-the-Pie-Visual/ba-p/1682539
https://amitchandak.medium.com/power-bi-where-is-the-conditional-formatting-option-in-new-format-pane-66e0afcb15f3
Colour =
SWITCH(TRUE(),
SELECTEDVALUE('Table'[Month Year]) = "Jan-2020", "red",
SELECTEDVALUE('Table'[Month Year]) < "Feb-2020", "orange",
//keep on adding
"green")
