Note the background colors. Darkens her, lightens him. Go figure
Was the same for the Trump Biden debate too except Biden was on the right half of split screen and Trump was on the left half. Biden's half was sharper and clearer -- Trumps half was less sharp and had different 'color temperature' lighting. Reminded me of the tricks often used in 'before' and 'after' cosmetic and weight loss ads designed to imply good / bad.
