Flying a couple of days ago from a strip near a popular paragliding site, a gaggle of several paragliders were in view and showed up on my SD as reported by PilotAware as a tight knot of overlapping aircraft.  There was also a sailplane in the vicinity.  It would be useful to be able to distinguish between these and other types of aircraft as their dynamics are very different.  Apologies if this has been previously discussed; I couldn't find it.