Synthetic Ca II H and Hε images and spectral profiles for reversed granulation, magnetic elements, and a dark fibrilar structure. Topmost row: synthesized Hε line core images from a cutout of the Bifrost simulation calculated in 1D (left) and 3D (right). Bottom two rows: Ca II H plus Hε spectral profiles from locations marked with coloured crosses in the Hε line core images. Middle-left: granular spectral profile. Middle-right: intergranular spectral profile. Bottom-left: spectral profile located at a magnetic field concentration. Bottom-right: location where Hε emission in 1D turns to absorption in 3D.