<com.futabooo.highlighttextview.HighlightTextView
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:textSize="30dp"
app:characterLimit="10"
app:overLimitBackgroundColor="@android:color/holo_red_light"
/>
HighlightTextView is released under the MIT license. Go read the LICENSE file for more information.