Why a repaired panel can look like a patch
Car paint is not one flat color. Metallic and pearl finishes carry flake that catches light differently depending on how it is sprayed, and the paint on a car that has lived outside in Rhode Island for years has faded a little from what the factory laid down. A mix straight from the code can still look off beside a door that has weathered.
That mismatch shows most in daylight, at an angle, on the shared edge between a new panel and an old one. The fix is part science and part judgment, and it starts with treating the repair as a color problem before a spraying problem.
