Chromospheric and photospheric B_∥ estimates in the medium-sized case at the original cadence (panels a and b), and temporal evolution of the corresponding magnetic flux (panel c). Major tick marks represent 1″. Black contours enclose pixels with two-lobed V profiles. We note that the values represented in panels a and b are saturated using different scales, which range from 0 to 400 G and from 100 to 1200 G, respectively.