The continuum is overlaid on the velocity field. The following pages are from a preprint describing the detection of ripples of acoustic waves from a moderately large flare. The fields are seen to be in the supergranule boundries. The field is seen to exist in small clumps which migrate along the flow-convergence lines and collect at the vertices. Small bipolar field elements can appear at any location but quickly the two components migrate to the supergranule boundries where they either cancel existing field or replace it.
Some details are here .
They show the high correlation between bright points in EIT and complex magnetic field clumps. There is a more detailed description and more images here .