Colorize TextInputLayout.FilledBox

android_text_input_layout.xml

<!-- See:                                                            -->
<!-- https://medium.com/omisoft/textinputlayout-styling-8b36a5e0d73c -->

<!-- Style and color must be placed into different files -->

<!-- Style -->
<style name="TextInputLayoutStyle" parent="Widget.MaterialComponents.TextInputLayout.FilledBox">
  <item name="hintTextColor">@color/input_box_color</item>
  <item name="passwordToggleTint">@color/input_box_color</item>
  <item name="boxStrokeColor">@color/input_box_color</item>
  <item name="boxBackgroundColor">#292D3D</item>
  <item name="shapeAppearanceOverlay">@style/TextInputLayoutStyle.ShapeOverlay</item>
</style>

<!-- And color -->
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:color="@color/light_blue" android:state_focused="true"/>
  <item android:color="@color/dark_gray" android:state_enabled="false"/>
  <item  android:color="@color/gray"/>  <!-- unfocused -->
</selector>