title: How add Target Graphic for Button in Unity3d?
body: <p>I am creating a menu for the user. I have already added Canvas element. It has some text elements as it's child elements. One of text element's has Button component added. </p>
  
  <p>I want this text-button change it's color when it is highlighted but I can't because Target Graphic is missing: "You must have a Graphic target in order to use color transition". </p>
  
  <p><strong>How do I fix it?</strong></p>