I [I][B]really[/B][/I] like this one. It’s easy enough that it wouldn’t be too bad to knit in a dark color, but it does have a little texture to make it more interesting.
The thing that I thought of is an afghan I saw available commercially. It was one of those ones you do in garter stitch, start with two stitches and increase at the beginning of each row until the side edge is as long as you want it, and then decrease at the beginning of each row.
But instead of starting the decreases, you would turn 90 degrees and increase at the beginning of a row that starts at the edge, and knit the last stitch of the perpendicular row together with the next stitch of the existing row. When you get halfway across, start decreasing at the beginning of each row that starts at the edge instead of increasing. When you turn and work sideways to what you started, you’re binding off and adding a border, but the border is only one stitch at the beginning and wide in the middle and decreases to one stitch to bind off.
In other words, it’s a square, divided diagonally with garter rows perpendicular to the dividing line, and the rest parallel to the dividing line.
I hope this is clear. If you understand it, it looks really cool, but it’s all garter stitch and the shaping is all on places you can clearly see, so should be one of the easiest ones to knit in a dark color.
Good luck with whatever you decide to do.