Eurosport posted an interesting chat with Vismas bike mechanic from yesterday, all the Visma TT bikes had yellow decoration on them, except for Jonas' bike, which was all black, basically pure carbon.
this was apparently to save weight for Jonas, even though the mechanic kind of admitted Jonas is the lightest of the riders anyway.
which seems fair enough they do this in other sports like F1. however they do it in F1 because they shift the weight they save to more useful areas and shift centre of gravity to gain performance, because in a world where your car, or your bike must meet a minimum weight limit, just saving a few grams of weight with paint actually isnt that beneficial.
and if they were that bothered about watt saving theyd send him on TT camp so he could learn some proper technique for once