Illustration of changes of the reflection spectrum resulting from the contraction of the X-ray source, described by the decrease of both h_max and r_c, for Γ = 2.6, ξ = 50, Z_Fe = 9, i = 50°, ℛ = 1, a = 0.998, h_min = 0, and r_in = r_ISCO. The reflection spectra, shown by solid curves, correspond to h_max = r_c = 1.3 (black), 2 (red), 3 (green), 8 (blue), and 30 (magenta) from top to bottom. The primary spectrum is the same in all cases and is shown by the dashed line.