Viewport colour mesh by collection

We now have colours in the collection manager. I was just working on a model and was turning on and off collections to see what is in what collection, its an old model I have not opened in a while.. I was just thinking it would be nice if the mesh colour in the viewport could use the collection colour. Along with 'Material' ,'Single','random' etc in the Solid shading mode 'collection' could be added as an option. It could be random colours by collection or from the collection colours.