This dialog actualizes all of yellow items to match the current filtering of items. Yellow items may lose their real relationship to the green items after manual modification to the green marks e. g. marking and unmarking items with green marks. It's because yellow items are not automatically updated as a result of manual changes to green items. Yellow items are not automatically updated since this kind of operation may require a lot of processing time. This command rebuilds the yellow coded part of the filter so that it gets updated to the current state of filter's green part.