Dipole mode visibility as a function of period spacing and the modulus of the reflection coefficient of the lower boundary of the g-mode cavity. Rows correspond to different sets of stellar parameters (see Table 1), columns correspond to different values of the reflection coefficient of the upper boundary of the p-mode cavity. White contour lines mark bands with equal visibility (see labels). Cyan dotted lines mark the nominal period spacing of the corresponding set of stellar parameters. Cyan dots indicate the parameter sets that are further examined in Fig. F.1.