What's behind the Pink Door?

I (Chris) don't have many weeks left working near London Bridge as I'm moving offices at the end of January. Although I've walked pretty similar routes two and from the nearby underground stations on a near daily basis for well over a year now, I still find the mildest deviation throws up something a little different that catches the eye. Sometimes it's a street I'm aware of but at a different time of day to a previous visit. Other times I'm sure lighting has changed in colour or layout. May be I just don't look hard enough sometimes! Anyway tonight was a proper dash from the office as it was raining hard as I left and already properly dark. I really don't remember the blue light on the railway arches or the pink door but both stood out so a combination of camera with brolly to keep off the rain was good enough to capture it with a high ISO so I could hand hold well enough.