Adobe Illustrator is a vector graphic editor that lets you create beautiful illustrations and graphics. You can adjust contrast to make your illustrations more vibrant, and to make them look more realistic. Here are some tips on how to adjust contrast in Illustrator:

  1. Choose a dark or light color for your background and foreground elements.
  2. Use a low or high contrast setting for your text and graphics.
  3. Use a black or white filter to change the color of your illustrations.