title: Why tab bar icon is not showing in my Bar item image?
body: <p>I am creating a simple tab bar , and i am using iphone 8 in simulator. I have imported icon( not glyph) of size 50 x 50 as mentioned in apple guideline, but the icon is not showing up in bar item image. I have done everything ( Render as, change pixel size, even i tried with different resolutions like 25 x 25, 75 x 75) but its not showing up in portrait mode. Kindly help. i wanna do it in storyboard. Below are the screenshots. 
  <a href="https://i.stack.imgur.com/m42br.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/m42br.png" alt="enter image description here"></a></p>