Here is the full list of all 20 Magicolors achievements.
Push 50 objects
Shoot 99 spells in one level
Acquire the PUSH spell
End the game
Finish the HOME scenario
Finish the HOME scenario with 3 stars in all levels
Finish the ICE MOUNTAIN scenario
Finish the ICE MOUNTAIN scenario with 3 stars in all levels
Acquire the FREEZE spell
Make 99 moves in one level
Freeze 50 objects
Finish the VOLCANO scenario
Finish the VOLCANO scenario with 3 stars in all levels
Finish the TEMPLE scenario
Finish the TEMPLE scenario with 3 stars in all levels
End the game with 3 starts in all levels
Acquire the HEAT spell
Acquire the ENEGY spell
Burn 50 objects
Energize 50 objects