Here's another thing to consider that will help you:

In the auto insurance industry, there's another component of the "damages" in a car accident...a component that almost nobody realizes and rarely asks for...
it's called DV...diminished value.

I had a pearl white Audi S4, got side swiped, incredibly hard paint to match since it's got so much pearlescence and the amount of mica flecks in it make ti look different shades depending on the way the light is hitting it. Got the best paint shop in town to do the repairs, in fact, shop decided to do it a 2nd time cuz he wasn't satisfied himself, AND he did entire side of car so it would all match when same light angle hit the side...(even though the actual damage was only about 8" long)
The result....still could tell a few hues difference in certain light angles.

This fact AND the simple fact that the car was in an accident causes some measure of diminished value $$, despite being fully repaired...it can NEVER be restored to pre-accident condition .....it just can't!

That's exactly what you're dealing with here with the cladding being a slightly different hue.

So, I retained an expert in assessing diminished value. I paid him about $300 for a full report, submitted it to insurance company (of driver that hit me of course) and fought with them for a while, until I got them to give me an extra $2,000.

Also, don't forget to fight for some value for the simple fact that it's been in an accident and that's "diminished it's value" slightly. In many states you must disclose any accident/damage when you sell, and I argued that since I now had to disclose the repair (separate and apart from the paint issue) and I determined that lowered the value of my vehicle come resale time....so I sought compensation for that too.

One other point, since I handled claims/lawsuits for a living, I did all the communicating and negotiating with the insurance company myself directly...... I realize that's not necessarily possible for everybody else to do.
But I used it to my advantage by repeatedly pointing out that I did NOT retain any attorney so I was saving them defense costs so they were more willing to consider my demand for DV.

PM if you want more info.