Conditional data formatting (color palette)

Hello everyone,

I´m traing to format this graph with a lot of information. Of course I will apply some filters to visualize the info with more detail. But at first I want to add a color palette but I don´t want to do it one by one...

I tried to add a theme but there isn´t one with more than 10 different color tones.

I already did it in Tableau but a can´t do the same in Power BI...