This is a gem of a Flatirons traverse on the east side of Fee, directly facing Bidoigt and Drugs (Der Freischutz), across the gully.
To get there, drop down into the gully west from Bidoigt and head due west 200 feet toward a notch/wide chimney splitting Fee (you can travel through the formation this way). Outer Dark is right at the mouth of the chimney, to climber's right on the east-facing overhanging wave.
Begin seated at the southeast corner, left hand in a hueco (left heel hooked here) and right hand on a sidepull. Power up to laybacks and move right.
The harder variant climbs off jugs early, to stay high through the middle and finish on crimps and a hueco. Grab two flat holds at the wall's end and step right onto the chockstone.
The easier variant does the same start but stays low across the middle. In either case, take care with the little Bansai tree growing out of the horizontal -- grab next to it or stand next to it, but leave it alone.
There's also an "around-the-world" loop (V8; Darkness Visible): do the high traverse, making the hard moves to the match hueco, move right to the two flat holds, then downclimb to two good incuts (the chockstone is "off"). Power back up to the hueco, move left a few moves, downclimb the crux of the low traverse, and then rail left past the Bansai to end at the jugs six feet right of the sit start. I'm sure you could keep going back right again if you wanted (!)....
East side of Fee, 200 feet west of Bidoigt.
One crashpad should be fine.