A special candy is the unofficial name for a candy in Candy Crush Jelly Saga that will powerful effects once cleared and matched. Upon activation, it's power will destroy more candies and yield a much greater score than a simple match of three. They can also be matched when just two special candies are side-by-side; the match will produce a very powerful effect much stronger than if they are activated one-by-one. When Sugar Crush is activated, they activate themselves.
If you create another special candies during having a striped candy or more, they won't be destroyed immediately by striped candy. This is different in Candy Crush Saga.
When you combine striped candy with color bomb, all regular candies will tranformed into striped candies follow the order: from left to right, from top to botton, and the first candy is horizontal striped, the second one is vertical striped and so on.
However, if you combine striped candy with coloring candy, the order of stripe candies is opposite: the first candy is vertical striped, the second one is horizontal striped and so on.
On June 8, 2017, commbining Color bomb with Coloring candy was changed, it is similar like Color bomb + Color bomb. This was fixed on June 13, 2017.