What do the Timesheet Flag colors indicate?
Each color indicates the current status of Timesheet and Tasks (New, Saved, Approved, ...).
When a person clicks Save on the timesheet, the flag would be Blue on the Timesheet level, but White on the Task level. Once the person submits, the timesheet flag will turn to Yellow. Then the Project Manager might approve or reject, causing the flags to change to Green or Red respectively.
For more information check EPM Live 2016 - Admin Guide: Chapter 6 - View Period Timesheets
Article by: Marko Manchev
Product: EPM Live