DashFlows: Specify colour of individual nodes

Hello,

I am trying to assign different colours to nodes visualised with Dash Flows to help visually group them together. However, I do not see a straightforward way to do this from the documentation. Would anyone be able to advise on how this could be achieved, please?

I see that it is possible to assign overall colour schemes and that nodes can have different types (which can also have different colours), but I would need a wider range of colours for my application than those available in the default schemes.

Any help would be much appreciated.

Many thanks,
Jessica