OK, totally confused now.
Let me get this straight. The paint codes never change (473.101 and 473.201), the part numbers for various spare parts have never changed, my local Ducati dealer tells me there is only one Ducati yellow (and therefore I presume red), but it seems to be common knowledge there are varying shades of each colour...
How does anyone know with any degree of certainty that anything they buy will match their particular bike??