Description

Added just a touch of colour.

Battery level is represented by the building lights, and the small number on the left.  As battery runs down more lights go out.

97-100%  all lights on
81-96 most lights on
61-80 bit more than half lights on
41-60 less than half lights on
21-40 some lights on
0-20 no lights on (buildings all black - time to charge!)