DS2 upended my mug so that the cold dregs dripped out over the seat cushion of our dark brown leather sofa. I didn't realise he had done it, and later on wiped the small drips off. The coffee has lightened the sofa in two lighter brown small circle drip spots.
Any ideas as to what I could do to restore the colour please? Its in a very obvious place and the sofas are only 2 years old.