This reminds me of Prosperity Palace, in the Kingdom of Cancer. Affluent indeed, Cancer is second in splendour only to the Imperial Golden Capital. It's described as mostly coloured in black in whites.
The King’s interior cabinet. Louis XV often came here, & it was from the balcony of this room that, w/tears in his eyes, he watched the departure of the funeral procession taking away Mme de Pompadour, 1 winter evening in Château de Versailles