Ksana Sweep Watch Face now has full compatibility with upcoming (February 9th) Android Wear 2.0 system update. Also, no phone will be needed anymore. Ksana will be fully standalone.
Only a few of the built-in complications (Unread SMS, Missed Calls & Phone battery) needs a phone with the Ksana Sweep phone app to work, and – since you can add any data (complication) from other installed apps on your watch to Ksana Sweep – that won’t be a big loss.

Got quite a few requests to add color to the different ambient/dimmed modes on Ksana Sweep watch face. I’ve been a bit stubborn and refused to make this change because I believed it would hurt battery life and perhaps be hard to implement without risking burn-in on users watch screens.

I was wrong (to my defence the ambient mode documentation available is bit confusing and contradictory).