Yeah, the value seems to be missing. It doesn´t matter though; cinnamon doesn´t use the popup-combo selector anyway, and I am not maintaining this theme anymore. I might update it if cinnamon gets some major changes in the future.
Oh man I love it! I was searching for something like this so much I have a dual-boot with Win7/Mint Cinnamon but I just love the clean and cool look Mint have, to bad there isnŽt a way to emulate the multiple desktop effect when one touch the corner anyways thanks a lot!