On the South Staffordshire Railway Walk, a footpath that has taken over the trackbed of the old SSR, you will still see, on the bridges over roads, these 'colours' - a mud-brown shade, with borders of yellow.
I'm guessing that these are the colours of the SSR itself. Certainly, the brown tint was the official colouring given to the SSR.
The SSR was taken over by the LNWR in 1923.
Curiously, on the other side of this fencing (ie the side you can see from the road below), the colours are lavender & white...
What does it all mean?