How to change background color of MaterialButton through styles.xml

Issue

I am trying to change the background color and text color of a material button-through style. However, I see no change in IDE and as well as on phone. Here is a screenshot of the issue.

The button next to cancel misbehaves, after checking in tons of attributes I fail to change background color.

Here is my XML:

        <androidx.constraintlayout.widget.ConstraintLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:orientation="horizontal">


            <com.google.android.material.button.MaterialButton
                android:id="@+id/btn_login_skip"
                style="@style/myMaterialButton.Unboxed"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/cancel"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintRight_toLeftOf="@id/btn_login_login" />

            <com.google.android.material.button.MaterialButton
                android:id="@+id/btn_login_login"
                style="@style/myMaterialButton"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/pay_deail_submit_btn"
                app:layout_constraintBottom_toBottomOf="parent"
                app:layout_constraintEnd_toEndOf="parent"
                app:layout_constraintTop_toTopOf="parent" />
        </androidx.constraintlayout.widget.ConstraintLayout>

Here is some style info:

<style name="myMaterialButton" parent="Widget.MaterialComponents.Button.OutlinedButton">
        <item name="android:textColor">@color/colorPrimary</item>
        <item name="strokeWidth">2dp</item>
        <item name="android:background">@color/colorPrimaryDark</item>
</style>

Here are colors:

<color name="colorPrimary">@color/silver</color>
    <color name="colorPrimaryDark">#2A2E43</color>

Solution

By Material Official Source you should use app:backgroundTint in your style

meanwhile for checking "Widget.MaterialComponents.Button.OutlinedButton" styles you should check buttons on Device or Emulator, sometimes buttons with this style dosent show good in IDE

Answered By - Mreza Nemati