Show genealogical proofs on Fan Chart
Add an option to the Fan Chart, to show "sutures" between couples and between parent and child in the Sources painter, reflecting the number of historical records mutually attached to both persons. What I mean is: if we can see parent and child together on a record in the Source Linker, we could see that fact also on the fan.
Here I mocked up a sample fan (ignoring any actual records). The fan is borrowed from https://www.familysearch.org/en/blog/genealogy-fan-chart
This is how I mark up fan chart of families I am working on. This helps me find the "looks right but may be wrong" weak links in pedigrees.
It takes so much time for me to examine by hand all the sources attached to everyone on the pedigree. This time sink frustrates me because I know FSFT has this information ready to hand; it is present in the Source Linker view of every source.