The original cardigan uses 13 colours in Rowan Felted Tweed DK and is rather bright when you see it in real life.

Using:
Phantom
Avocado
Ancient
Celadon
Rage
Cinnamon
Pine
Ginger
Duck Egg
Gilt
Camel

Ravelry users reported that the fit was on the snug side, so I have gone up a needle size and also a size up from my usual Rowan size (which is Medium) – the lower part of the sleeve is still snug and I think the body will be a tight fit, but we’ll see what happens when I block the cardigan.

Long blog post here