There seems to be a bug/inconsistency with the pop-up descriptions for the grade band. If you're in any area and hover over a colour (say yellow) at the area level it will give a description (say intermediate for yellow), but if you hover over the same colour at the sub-area level it will describe it as one level up (e.g. experienced for yellow). Click down into the sub-area, and now at the area level, it will be right -- but, again, all the sub-areas will have the sub-areas will have it wrong.
There seems to be a bug/inconsistency with the pop-up descriptions for the grade band. If you're in any area and hover over a colour (say yellow) at the area level it will give a description (say intermediate for yellow), but if you hover over the same colour at the sub-area level it will describe it as one level up (e.g. experienced for yellow). Click down into the sub-area, and now at the area level, it will be right -- but, again, all the sub-areas will have the sub-areas will have it wrong.