Here is the full list of all 18 Spectrum trophies - there are 1 bronze, 8 silver, 8 gold and 1 platinum.
You've completed Spectrum!
You've completed chapter 01 level 01!
You've completed chapter 01!
You've completed chapter 02!
You've completed chapter 03!
You've completed chapter 04!
You've completed chapter -01!
You've completed chapter -02!
You've completed chapter -03!
You've completed chapter -04!
You've completed chapter 01 perfectly!
You've completed chapter 02 perfectly!
You've completed chapter 03 perfectly!
You've completed chapter 04 perfectly!
You've completed chapter -01 perfectly!
You've completed chapter -02 perfectly!
You've completed chapter -03 perfectly!
You've completed chapter -04 perfectly!