The pale grey wall finish has dark horizontal and vertical joint lines. Beside them, the shower rail and glass edge are black, so the darker details belong to the wall arrangement as well as the fittings. The broad pale areas remain the main background.
When comparing a wall finish, look at its joint lines together with the chosen shower equipment. A darker grid can provide a link to black fittings without making the whole wall dark. Judge the complete pattern across several sections, because its effect is less obvious in a small sample.
