My request is for a summary view in the list of peers involved in a transfer.  I often look with interest at the many nodes attached to a particular transfer, the dozens of flags, and wonder at the distribution by country, continent or region.  If I were to develop the visualization, I'd portray histograms for individual transfers and for groups of transfers and allow retention of that data for comparisons over histories of usage.  It'd be interesting to sum or correlate such data over multiple users, too.  (I'm a C++ developer of many years - I'd donate my time and effort to do this for Tixati.)