Enable filter-based topic fading in Gantt charts
Following on this discussion: https://community.mindmanager.com/topic/1810-fade-topics-in-gantt-pro, I'd like to propose the ability to be able to apply filter-based topic fading in Gantt charts. Currently this is possible in the map view, and it is possible to use a filter to hide topics the Gantt chart, but not to fade them. This should be a fairly straight-forward improvement.
Incidentally, there should also be an indication when a filter is being applied to a Gantt chart, like the one shown in Map View.