Photometric evolution and mass build-up of an idealised main-sequence galaxy with initial M_★ ≃ 2 × 10¹⁰ M_⊙ that joins our cluster model at z = 1, for stripping timescales of 0.5 and 2.0 Gyr (dark-red and orange curves, respectively), and for a case without stripping (blue curve). Top panel: SFR as a function of the look-back time. For times larger than ∼8 Gyr (z > 1), the three models share a common SFH shown by the solid black curve. Bottom panel: Galaxy evolution in the rest-frame (B − V) colour vs M_★ plane. The white square shows the initial values at z = 1, the coloured circles show the final (z = 0) values for the three scenarios considered. The green dashed-line separates the red sequence from the blue cloud (from Vulcani et al. 2022).