cordova-plugin-android-tools/res/drawable/error_toast.xml

Cordova Android Tools Plugin

<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle">

    <solid android:color="#d9534f"></solid>

    <stroke android:color="#C4CDE0"></stroke>

    <corners android:radius="10dp"></corners>

</shape>