There can't have been many advantages to working in the mill. The hours were long, the machines were noisy and dangerous and the pay was poor. And because almost all of the old photographs we have of mill workers a hundred years ago are monochrome, it appears to be a grey landscape my ancestors inhabited. But there must have been colour - pinks, blues and yellows. There was when we went around Bradford Industrial Museum a couple of weeks ago. Surely there was colour.