They paint the top inside of the door panel the body color of the car. Seems white might be a tad bright on the interior. But I guess you didn't notice...
Oh, you're asking if it's too bright and distracting. No, I didn't find it to be, and it was a pretty vivid day. I guess the shape or something helps it be less reflective, but no, it's not distracting.
Having said that, I still wouldn't choose white. There are better colours in the palette.