Unlock feature & Theme Custom
we can add a double tap feature to unlock phone … it had been used by many other phones …customised theme option with optimised lock screen,custom font addition,custom widget addition and some of many other types.
overall to say custom based just for UI atleast.
@Vipul-ch Fuel OS (the android OS that your Mark 1 runs on) ships with the Double Tap to Wake feature available and is ON by default. It seems like this setting is turned OFF in your case. You can open up Sense (double tap on the central circular Home button at the bottom of your phone ) and type in Phone Wake to reach setting. You can then turn it ON and try it out. Alternatively, you can go to Phone Settings and go to the Gestures menu to find this setting.
We are exploring the other features you have suggested and will let you know when we plan to push out the same in future updates.
Thanks! #MakeBetter together! :)