Make leaves. Prepare decorating bag with melted dark green candy. Cut 3/4 in. off tip of bag.
Pipe a thick line of candy onto a piece of parchment paper. Make it as tall as you want your leaf to be. This will be the center of your design.
Place tight triangle comb in center of piped line, then swipe candy from center out, at an angle. Clean comb, then repeat on the other side.
Using short side of comb, create a leaf shape by making a vertical curve on each side of center line, connecting top of leaf to bottom. Chill until set, about 5 minutes.
Repeat, making about 6 to 9 leaves of each color. Leaves should range in size between 2 and 4 inches.