Hi
Mine are brown and have a few white .marks on them. I tried a leather cleaner from the pound shop which was good but didn't get rid if the white marks also.I was worried it was too chemically. I dont know what the white marks.are but I thnk it's.when 2yo de has spilt.some food and I haven't seen it.
Sorry for rubbish typing thus is a new phone and I'm just getting used to the keyboard!