The corkscrew is a reference silver colour, though I may now open a bottle of St Andrews Ale now that you mention it...
Weight... it seems reasonably light to me. This is with reference to a Biopace Mountain LX chainset.
But to be precise it weighs 745g (arms, rings and bolts) which is 43g lighter than a Campag Comp triple at £115, and 137g lighter than a Campag Race triple at £89.