Left: Data set 1 (AR 10930); right: Data set 5 (AR 13014). From top to bottom: (a) Trajectories of inward-moving (green) and outward-moving (red) PGs found by feature tracking from the series of broadband images. Arrows point to the disc center. (b) Positions of visually selected PGs (green, red) in the enhanced continuum images. (c) Maps of LRF magnetic inclination (0°–180°) together with line segments (green, red) representing PGs. White lines show locations where the surrounding inclination was measured. Square symbols at the ends of green/red line segments mark class 1 PGs and dots class −1 ones.