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* The track button may change zoom levels ( in settings )
* Let the user see the numerical value of a datapoint (maybe after they hold their finger on the graph )
Main Screen
* Implement the hierarchical displaying of the data - simplicity and user control
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* Create better affordance for scrolling ( shadding on the bottom ? )
* Add some kind of help, or FAQ with pictures
Code design:
* Refactor plotting to use (x, y) series, not just (y) series over constant interval
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