There are a few things you can do to change the sides of polygons in Photoshop. You can make them point inwards or outwards, you can make them have more or less sides, and you can make them bigger or smaller. Here’s how to do it:

  1. Choose the Polygon tool from the Tools palette.
  2. Choose one of the polygon shapes from the Polygon menu.
  3. Change its size by clicking on its thumbnail and then dragging its size slider to the right or left to change its width and height.
  4. To make a polygon point inwards, click on one of its points and then drag it towards the center of the polygon.