Hi @harsh35462
If the front part of the show is leather, you could always try [https://www.theleathercolourdoctor.co.uk/can-you-dye-leather-shoes-a-different-colour/|dyeing] or [https://leatherhero.com.au/pages/the-difference-between-leather-dye-paint-and-stain|painting] them back to the original colour.
Once you work out which is the best option, there are a lot of leather dye and paint suppliers online