SEDs and colours obtained for different SFH populations

SEDS and colours for each of the populations but the SEDs produced are
still identical for each age of the population, is this the case
though? Is there something wrong with the code maybe? The colours get
redder with age and trace similar paths to Kevin's in Fig's 9 & 10 but
not quite the same numbers - is this due to fact they are dust
corrected?