Configurable colors for earthquake plugin.
completed by: marthd
mentors: tackat
The earthquake configuration dialog should receive a groupbox that allows to edit the colors for the different severities.
http://en.wikipedia.org/wiki/Richter_magnitude_scale
Minor, Moderate and Major earthquakes should each receive a different color configuration:
http://en.wikipedia.org/wiki/Richter_magnitude_scale#Richter_magnitudes
See the coordinate grid configuration dialog for examples
Have a look at
http://techbase.kde.org/Projects/Marble/OnlineServices
and at the existing Online Plugins. The Wikipedia plugin has got a configuration dialog that you can use as a "template".