Spring's advent means the rebirth of most things, including fashion's love affair with color. Eyeliner is always a big part of Fashion Week beauty, and for 2011, saturated, chromatic shades made an outsized mark on the runway. But how are we all supposed to be wearing this stuff? That's why I put together five options that give you plenty of breadth, from demure and barely there to totally out-there and statement making. Check them out and tell me which ones you're interested in trying.