you dye it
like start with stripping the finish off
then sand it to 220 grit
get a test board
and using a old t shirt wipe the stain on and then off
let dry, see how good of a job you did and then
if it is good, do the body, once you let it dry for 2 days start the finish process, takes a few weeks to do it right but it is top notch when done