There is no 'official' Rainlendar port of the metalX2 skin, and the ones you see in screenshots are usually just home-made by individuals for personal use. I have yet to see one I'm 100% happy with, but when I do I'll give the go ahead for it to be released.
In an ideal world I'd have the time and the inclination to make ports of my skins for other applications, but unfortunately I don't at present. I'm still debating whether to pick up development of metalX2 again after a recent hardware failure which took me out of action for a month.