Importing image into Android Studio, appears as dark grey
<p>I am attempting to import an image into Android Studio and then use it as a background for my app. I right click on the res folder and import asset, next I choose action bar and tab icons, here I find the image file on my pc and then import it in my project. </p>

<p>When It imports all the previews are dark grey and then when I place it in my layout I get this:</p>

<p><a href="https://i.stack.imgur.com/F9QV9.png" rel="noreferrer"><img src="https://i.stack.imgur.com/F9QV9.png" alt="enter image description here"></a></p>

<p>I am using a PNG which is around 700kb if that makes any difference.</p>