Change default value for graph line color scheme

Hi all

I have a graph that I used the transformation Labels to Field
When I plot the graph the default color is green and I can change it clicking on the legend but I have to many labels and it’s no viable change every single one of them.
Only one label is showed at a time and it’s always green by default.

How do I set the default color of the line so no matter the label it shows the color I want?

Captura de tela 2021-12-08 105423