MAC’s Stylishly Yours collection launched with two Fluidlines, which are gel eyeliners. (I apologize now for my crappy photo of Dark Diversion. Off day for photography, apparently. Someday I will put in more effort…)
MAC describes Fluidlines as:
Ultra-smooth, Fluidline’s gel formula provides the precision of a liquid liner with a silkier, softer finish. Goes on “foolproof” with a brush in an easy dip-and-stroke action. Long-wearing. Smudge-proof. Lines up in a rich array of colours and finishes. Brush sold separately.
MAC Dark Diversion Fluidline
Description: Blackened plum. (LE: Stylishly Yours)

MAC Blacktrack Fluidline
Description: Solid flat black. (Permanent)
Swatching procedure: My skintone is a MAC NW20 (maybe a bit lighter due to it being winter). All photos taken under “natural light” bulbs, which mimic natural daylight.

Dark Diversion was an impulse buy, but I think I can get some use out of it… if I remember I own it. I hardly ever use my other two Fluidlines I own (Blacktrack and Sweet Sage). Blacktrack is really intense, but works AWESOME on the waterline, despite adhering to contacts and dryness that I’ve mentioned before.
Tags: Blacktrack, Dark Diversion