title: how to change the color of underline of TextInputLayout?
body: <p>how do I change the color of underline of TextInputLayout?</p>
  
  <p>I have tried to set colorControlNormal, colorControlActivated, colorControlHighLight in themes but it does not work.</p>
  
  <p>I want to set the color of underline white instead of black:
  <a href="https://i.stack.imgur.com/TVD8R.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TVD8R.jpg" alt="enter image description here"></a></p>