If you want to change the thickness of a shape in Photoshop, there are a few different ways to go about it. One way is to use the Width and Height tools, which will allow you to change the width and height of the shape respectively. Another way is to use the Pathfinder tool. This tool allows you to move or copy pieces of your shape so that they can be changed in size or thickness. Finally, you can use the Transform tool to change the size, position, or thickness of all of the pieces at once. ..