ChartExpert

ChartExpert is an app to show a variety of charts, works with apps which supports ChartExpert API.

ChartExpert can draw;
- line chart,
- vertical bar chart,
- pie chart, and
- scatter plot, and
- multiple-page chart.

Recent changes:
- Bug fix when showing charts with no data or only one data.
- Change multi-page interface.
- Update development features.
- Store processing log to an external storage.
- Support color command to specify chart color.
- Add colorthemes.