We have already explored how to format shape outlines and change their weight. In this tutorial, you will learn how to apply a dash style to shape outline. A dashed line in PowerPoint 2013 can have plenty of variations: from a line with fewer dashes to ones with longer or smaller dashes, or even alternating small and long dashes. So why do you add a dash style to your outline? That’s a good question and the answer is quite simple — sometimes, dash styles can add value to visual content, but use them judiciously. Many diagrams use dashed lines as a way to differentiate them from other content that have conventional, non-dashed lines.