The Be Good Kids in The Land of Color

In a land that is nearest the Rainbow, right below the Mighty Bow, exist the most beautiful animals ever known. They are the inhabitants of the Land of Color. Their colors are brilliant and vivid! They reflect what is in the Rainbow.
Now there appears to be a threat to their beautiful Land of Color and happiness! But The Be Good Kids are on the way; and their powers are well known to help others who are under siege!
But what about this Glass Rock?! What kind of powers does it have? (If any...)