In Illustrator, you can change the stroke weight of a drawing by using the Stroke Weight property. This property is located in the Property Panel, and it allows you to set a value for how light or dark a stroke should be. To change the stroke weight of a drawing, follow these steps:

  1. Open Illustrator and open the Property Panel.
  2. In the Property Panel, locate the Stroke Weight property and set its value to something other than 100%. For example, if you want your stroke to be more light-weight, set its value to 50%.
  3. Save your drawing and enjoy your new stroke weight!