Here is the full list of all 9 Touch the Color achievements.
Collect 1000 Stars from the beginning of the game.
Collect 500 Stars from the beginning of the game.
Play 100 games.
Play 10 games.
You bought a theme with stars.
Collect 100 Stars from the beginning of the game.
First game!
Change theme for the first time.
You get your gift for the first time.