Can't change color of Dimension Value

Andrei_3_0-1744723153907.png
Hello, so as you can see in the picture below I am trying to change the color of the 2 texts "Pozitiv" and "Negativ", I do think it might be a bug or something because for almost 2 years I didn't have this problem but now I can't find the option to do it. Thanks!

 

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