A guitar made of maple will sound brighter than a guitar made of mahogany. A Les Paul is a mahogany guitar - even the ones with the carved maple tops. The layer of maple is nowhere near thick enough to make any significant difference in the sound of the guitar. A maple neck, or an all-maple body would sound different, but even a 1/2" layer of maple is not going to make any difference at all.

Not to the sound anyway.

They do look pretty. :cool: