Make contrast of colours in Activity Tracker

Make contrast of colours in Activity Tracker Excel export more readable

When using the Web Browser, the contrast between Confirmed & WfC colours more is relatively easy to spot since the hatches are used.

When exporting it to Excel file, the hatches are not applied and the contrast between the 2 shades of green is not sufficient for the people sharing progress to get a clear overview.

1 easy solution would be to change the currently used shades of greens (wfc should be lighter and confirmed a bit darker?) to make it much easier for the construction managers.