Add "color map" as export option when using the multicolor marker
When using the multicoler marker detected people from different color maps are treated the same when exporting the trajectories.
In some usecases it could be useful to be able to add to which color map the tracked person belongs to. For example there are experiments with differently colored hats for male and females. For further analysis it would be useful to have a possibility to add this extra information if the trajectory belongs to one color or another.
For this concrete example there might be a workaround by setting different heights, which can be exported.