title: Unity buttons sometimes black out in Android
body: <p>I recently started developing in Unity and I like it a lot so far, but there is this one bug, I can't tell where it comes from and similar reports of others I read didn't help me.</p>
  <p>The problem is that buttons sometimes (almost always by now, not so often in earlier versions of my project) are straight up black and have very dark grey text in them, which is completely different from how they are supposed to look like.</p>
  <p>Even if I put all buttons of the color to straight white, this happens - only in Android btw! (Not tested in iOS, but it's neither happening in the editor, nor in desktop builds.</p>
  <p>As I said, this <strong>seems to</strong> happen more often, now that the game got bigger, has more buttons etc. - so I would guess that is has something to do with setting the Source Image of those buttons to UISprite. Also this <strong>does not</strong> happen to buttons that have an actual image as Source Image, not the default UISprite.</p>
  <p>So this is an example of how it is supposed to look like
  <a href="https://i.stack.imgur.com/7IkEr.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/7IkEr.png" alt="" /></a></p>
  <p>And this is how it actually looks like:<a href="https://i.stack.imgur.com/LE8Y5.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/LE8Y5.png" alt="" /></a></p>
  <p>Has someone got an idea? I assume it is something about loading the UISprite.</p>