Exactly, and I have heard some speculate that just want to have couronne nord and couronne sud. Once we get to that point, redesign is complete (because anyways the numbers of some of the signs they are putting up will need to get changed again due to the redesign of the network), all old fares are removed, then I’d go for a unified or two colors (to denote south and north).
But unfortunately, in the current situation it is not the case.