Evolution of a z ≃ 0 RS galaxy with $M_{\mathrm{stars}}^{z=0}\simeq {10}^{10.9}{M}_{\odot }$. Left panels: Time evolution of the rest-frame colour (u − r) and νL_ν (250 μm). Right panels : Evolution of the galaxy in the sSFR–M_dust/M_stars and colour-νL_ν (250 μm) diagrams. Each point corresponds to a snapshot of the simulation and is coloured according to the galaxy position at that given time in the M_stars−colour diagram (i.e. blue, green, and red for BC, GV, and RS, respectively) according to the z-dependent GV definition given in Sect. 8. The reference GV evolution is shown in the first panel.