if you are talking about paint as in liquid paint you can add light brown into it make sure the brown is a light shade and don't add to much
Flat paint leaves a dull finish.
no
Repaint it
shiny
No, there is no gold in red paint.
To dull shiny gold, you can use a matte finish spray or apply a chemical solution that creates a patina effect.
Talk2DIY Automotive - 1986 Dull and Hazy Paint Finishes was released on: USA: 6 May 2004
by using a scotch bright pad.....
physical change
The component of the atmosphere that causes iron to rust and paint to dull is oxygen. When iron is exposed to oxygen and moisture, a chemical reaction called oxidation occurs, leading to the formation of iron oxide, or rust. In the case of paint, oxygen can react with components of the paint, causing it to lose its shine and appear dull over time.
I'll assume you mean "matte paint", in which case it is simply a paint which isn't reflective and has no sheen (ie. it isn't shiny) to it.
You can dull shiny gold metal by using a fine-grit sandpaper to gently rub the surface until it becomes less shiny.