What's going on here then? The Gallery wall has gone yellow.
And a crane has just arrived. Could it be the early stages of a new work of art? Watch this space - and watch that space too.
If the morning shadows cast on the corner of our building look odd, they're easily explained by the fact that the building below, known by a variety of names but most recently as Sheffield House, has been stripped to a carcass for demolition and sunlight can now pass clean through it.