From top to bottom: Summary evolution of the magnetic flux, magnetic area, and magnetic flux density (magnetic flux over magnetic area) of the region, when it was crossing the central meridian. Black curves represent the total unsigned magnetic flux (and corresponding area), while blue and red ones represent positive and negative flux-related quantities, correspondingly. The blue and red diamonds in the middle panel represent the individual areas of the positive and negative magnetic partitions. The red arrows in the top panel indicate the times of flux emergence episodes in the FOV.