Vector lines are a key part of any graphic design. They can be used to create a clean and simple look, or they can be used to add detail and interest. There are a few ways to smooth out vector lines in Illustrator. One way is to use the Curl command. This command will make the line curl up towards the center of the canvas. This will help make the line more even and smooth. Another way to smooth out vector lines is to use the Distort command. This command will make the line distort in different directions. This will help make the line more even and smooth. Finally, you can use the Levels command to adjust how much of each color is shown on each line. This will help make sure that all of the lines are evenly balanced and look correct when displayed on your screen.