Out of interest (as I'm flying TG KMG-BKK tomorrow), was this International? As you've mentioned Silk Air and Dragonair, I assume it is.

FWIW, I flew out of the domestic terminal last week, and the business lounge looked not dissimilar to how you described - all decked out in a delightful 70s orange. I was half expecting prawn cocktails and fondues. The dometic first lounge was tucked away the other side of the restaurant by security, so I've no idea what it looked like.

(I had the singular pleasure of a MU flight in Y, so sadly, had access to neither. And had to fly MU.)