I do apologise if this is something i should really know.

If I have 2 overlapping circles, how can I colour the 3 resulting regions?

The same question applies to any number of overlapping circles or other closed shapes.

I have read some posts about drawing lines, turning them into shapes, subtracting them from a background shape, breaking that shape, then colouring the various regions and can make that work but I haven't discovered how to do the equivalent with closed shapes.

I do appreciate your help.
Peter