I thought I'd post some rough mocks of the Plano UI to help get the idea of what's in my head across to you guys. These are in no way fleshed out or properly explored, just a few examples of the way it could look and work.

Maps

The current plan is to use Here Maps as the base component that takes over the complete scene, with controls floating above it.

Audio

Real basic, real clean. Unfortunately the Bluez library doesn't support album artwork over bluetooth, so for the moment it's text only. Also in "lights on" dark mode.

Telephony

Further use of the top tabbar for primary navigation within the scene. Personalized favorite coloring will have to be in-device setting at this stage.

Settings

And a basic settings view.