Umbral brightening of January 19, 2013 in selected AIA bands and Hα, together with HMI images of the longitudinal magnetic field, continuum intensity, and line-of-sight velocity. The bottom row shows difference images. The arrows in the Hα difference image point to the umbral brightening and the associated plage footpoint. The images are orientated in the solar E-W/N-S direction. A time sequence of images is shown in movie 1 in the electronic version of the journal. Each frame of the movie shows images in the 1600 and 304 Å bands (top row) as well as in the 94 and 335 Å AIA bands (bottom row); the first frame shows direct images in all four bands, the others show difference images in all bands except 1600 Å.