How was the repair carried out?
Buy
RIT dye from amazon, a liquid dye, you may have to mix 2 colours together.
Ignore all instructions, I experimented with lots of upholstery material.
A cup of water, and maybe an egg cup of dye.
Mix it up.
Don’t forget the dye will run down hill, so ensure your cushion is in right position for dye to run, it only moves very slightly.
Dip in a paintbrush and clear off most excess, there is hardly anything on your brush.
Apply following the pile, don’t put lots on or over paint it.
You could try a weaker solution, and add dye as you need.
It states on dye container to apply lots of water to cushion, DON’T, it will bleed.
If you have a patterned seating you don’t want it to run or bleed.
Using this method, it is possible to dye the whole seating area, but would need several coats, and then a finishing application.
But just for my result just follow the instructions above.