That would be the stock amber lens. The title on the picture's page says "The completed hack (blue buttons, amber screen)."

Hey does anyone who's familiar with the Empeg smoke fascia think it would look lame to have red buttons and a blue knob? Kind of a R-G-B motif... I can't mentally picture it so I'll probably draw it up in Corel Draw before I buy the buttons. Hmm... Green-ish buttons would be ideal though. I hope Brian considers doing a Mk2a knob template as well.

That soldering is *insane*. I have serious respect for you guys who did it. I have the manual dexterity to do it, but definitely the soldering expertise or the equipment. My soldering gun is a garbage $12.95 Radio Shack job.