There are a few ways to make radial lines in Photoshop. The easiest way is to use the radial line tool. To use the radial line tool, you need to select the line you want to make a radial line on, and then click on the mouse button. Then, drag the mouse cursor up and down to create a gradient of colors along the line. The gradient can be changed by clicking on one of the colors in the gradient and then changing its properties (such as opacity).
