Background colors / images on different dashboards


This seems like the most basic thing, but I can’t work it out…

If using a custom theme, how can I make the dashboard background independent from the theme?
I have some dashboards where I want to set a color.
And others where I want to use an image.

My theme has background image. How can I set a background color on some dashboards?


I asked a similar question, this was the advice given


Where do I then choose the color?

I must admit the one dashboard I use a colour background on has a subtle pattern on it so I just add as a media Url, I guess you could use the same option for a plain colour background