Slit-reconstructed Hα continuum (top left) and line-core (top right) intensity images of active region NOAA 12722 observed at 08:05 UT on 11 September 2018. The blue and red contours refer to a co-temporal magnetogram at ±100, ±250, and ±500 G. The black and white squares give the location of restored Hα broadband (bottom left) and narrowband line-core (bottom right) filtergrams taken at 07:50 UT. The yellow rectangle (top right) gives the location of continuous surge activity.