Isochrones at about the LMC metallicity computed with STAREVOL (Z = 0.008, left panel) and GENEC (Z = 0.006, central panel), and at the SMC metallicity with GENEC (Z = 0.002, right panel). The blue curves are the isochrones for the ages indicated on the plot for rotating (solid), and non-rotating (dashed) models. Left and central panel: one set of isochrones illustrates an age where a large eMSTO is expected (1.12 Gyr), and the other set a much older age, where the isochrones are almost indistinguishable (3.98 Gyr). The red dashed curves represent the non-rotating isochrones that best match the turn-off luminosity of the rotating model (see text). These isochrones correspond to ages of 0.92 and 3.94 Gyr for STAREVOL models and 0.74 and 3.97 Gyr for the GENEC models at the LMC metallicity. The small differences in term of colour and magnitude between both sets of models is due to the slightly different initial metallicity and microphysics included in the modelling. Right panel: same as the other panels, at an age of 5.01 Gyr for GENEC rotating models. Here, the age of the dashed red (non-rotating) isochrone is 4.66 Gyr