Gradient colored track - color based on activity data (speed,elevation,grade...).
Dot-racing
Dynamic track width,height,opacity - based on activity data
Display currently selected activities immediately in Google Earth :
When you click "Export -> ENABLE/DISABLE instant export to Google Earth in current view" - when ENABLED - every time you select some activities in current view in SportTracks, they are immediately shown in Google Earth application. (Latest version 6 of GE is recommended)
All features work in "Daily activity" and "Activity Reports" view.