title: Unity: How to stretch UI picture to relative size of canvas without it overstretching?
body: <p>My UI elements in free-aspect ratio screen are perfect but when I change aspect ratios the text and pictures are way too small. I'm using an anchor to the corners for the UI elements; however, if I use the all-direction stretch then it overstretches. How do I prevent overstretching? I want the image to stretch relative to the canvas size while being anchored in a position. How do I do this?</p>
  
  <p><a href="https://i.stack.imgur.com/eiTXB.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/eiTXB.png" alt="original; small screen"></a></p>
  
  <p><a href="https://i.stack.imgur.com/lDAKl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/lDAKl.png" alt="small UI; increased ratio screen"></a></p>