Here is the full list of all 15 Colortone achievements.
Complete 0 Level
Complete 1 Level
Complete 2 Level
Complete 3 Level
Complete 4 Level
Complete 5 Level
Complete 6 Level
Complete 7 Level
Complete 8 Level
Complete 9 Level
Complete 10 Level
Complete 11 Level
Complete 12 Level
Complete 13 Level
Complete 14 Level