I’m not sure if I’m missing something here but in free-form layout, I can change the background colour of a KPI visual but it doesn’t look like there’s a way to change the color of the value.
I know we can change the color at the theme level but it applies to all visuals in the analysis/dashboard. If we can change the background colour of a specific visual, I think it would make sense to be able to also change the text color. I think it’s supported in some visuals (e.g. tables) but not in KPIs.