New app - modified the graph to display with colours quite close to the iOS version.
Note that it is not possible to use gradient background (or area fill) with achartengine time series - there is no API support for this.
- trying an alternative approach, of setting the chart background color to transparent, in order to allow a background gradient view to draw-though, does not work as intended: the fill area goes *below* the X axis, which looks very ugly, and rules-out that possible approach.
However it might be possible in future to use a gradient on the fill colour.