Colored items are the simplest of the match-three gameplay elements. They are objects of a certain color that create a match when you position 3 or more of them (of the same color) in a row or a column. Colored objects can be goals for a level – that means you must collect enough of a given color to complete the level.  
 
Colored items are affected by gravity. If you match at the bottom of the level, all the colored items from the top are going to fall to fill the created space.