>What's with the wall stripes?


There are four colours of stripe visible, extending along the walls, down the three visible corridors and out of sight.
Their purpose isn’t particularly obvious.

CLARA: “Wait… I think this thing here’s a map! Look, it’s got a marker where we are, and - whoa. It’s a touchscreen!”

BONNIE: “Does it say anything about the coloured lines on the walls?”

CLARA: “I’m… not sure? It doesn’t say. I think they might lead places.”

DANIEL: “So why do they start near here, mostly?”

CLARA: “I guess it could be because the map’s here?”

> ~==>