I have literally just received a text from a customer I tiled for. She requested a light grey colour grout so I went to Topps and asked about light grey. They sold me microflex smoke (which is a light grey). I applied it to the tiles in the bathroom which are a white metro tile. I also applied it to green cracked glazed tiles in the kitchen. Her text says she has just seen my work and is not happy with the bathroom grouting as it looks almost black. She also said that the grout in the kitchen is ok. I used the same grout in both rooms. She is going to call me tomorrow to discuss. I am a bit peeved that I got the text so late, and also peeved that she is complaining about the colour in one room but not the other. I have not yet been paid for the job!