Pocket Tutor - software changes

Bruce Hall
 

I added a few features to Pocket Tutor:
- battery icon: displays current battery charge in bars & voltage
- low battery warning that is audible and visual
- adjustable screen brightness 10-100%
- user selectable text color
- user can choose default activity on startup.

I really like the last feature.  When I turn on my unit, it goes straight to my favorite activity (random words).

Bruce

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