Three examples of FORS2 spectra. The name of the galaxy, redshift, and T-type are indicated. The left panel displays a representative spectrum of a galaxy on the red sequence, whose disc is redder than its field counterparts. The middle panel shows the spectrum of a galaxy in the blue sequence, but forming stars at a low rate and with a red disc. The right panel displays in black the spectrum of a galaxy that actively forms stars, but with redder disc than its field counterparts. For comparison we show in green a galaxy with a field-like disc that exhibits the same spectral feature and colours as the galaxy in black, but with an earlier morphological T-type.