Outer Sump Colour - Indus vs OG

Recalled that the Outer Sump Trim on the front bumper for the Dynamic is painted Indus Silver apart from Indus Silver cars where it is painted in OG (was supposed to be Stornoway but since that's gone I'm assuming the Trim is also getting OG).

So while looking at all the cars on the Transporters being whisked to their new homes I noticed what I think is an OG (photo on the left and reckon it's OG based on the fact that the car is darker than the Sump Trim which we know is Indus) and then on another photo the Indus Body Colour (the one on the right) with the darker OG Trim

Not all that much of a difference between OG and Indus when looked at like this. Apart from the fact that the OG is nicer