Line-profile synthetic images of β Lyr A computed for wavelength range of Hα (i.e. from 655.1 to 657.8 nm, at a fixed phase 0.25). Optically thin components are clearly visible. The disc atmosphere appears first, because its Keplerian velocities close to the inner rim produce the blue-shifted wing. The jet inclined towards the observer appears second, with high velocities being projected to the line of sight. Finally, there is the spherical shell, with relatively low velocities spanning the core of Hα, which obscures other small-scale structures. For λ > 6563 Å, all objects disappear in a reverse order. An animated version is avaiable online and at https://sirrah.troja.mff.cuni.cz/~mira/betalyr/.