Top panel: composite of the 1.14 mm continuum ALMA Stokes I (contours), polarized intensity (grayscale), and polarization position angle segments (red bars) in the GGD27 MM1 disk. Bottom panel: similar as before, but the color image showing the polarization fraction (here, the polarization position angle segments appear as black bars). In both panels, the contour levels are 3, 10, 50, 120, 200, and 400 K. The wedge shows the scale of the polarized intensity and polarization fraction. The synthesized beam is shown in the bottom-right corner of the panels. Note that the 120 K contour appears at the transition radius, with an almost null polarization ring, between two distinctive polarization patterns.