How do I change the boxBackgroundColor of TextInputLayout dropdown while selected?

Question

So I want a transparent box background color even while my dropdown is selected, but by default it is being tented to darker color.. Check out the images below.

Not selected

Selected

Here's my code

<com.google.android.material.textfield.TextInputLayout
            android:id="@+id/type_dropdown_container"
            style="@style/DialogDropdown"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_marginTop="16dp"
            android:hint="@string/type"
            android:textAlignment="textStart"
            android:theme="@style/DialogTextInputTheme"
            app:boxBackgroundMode="outline"
            app:helperText="Required"
            app:helperTextTextColor="@android:color/holo_red_light">

            <AutoCompleteTextView
                android:id="@+id/type_dropdown_textview"
                style="@style/DialogInput"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                android:inputType="none"
                tools:ignore="LabelFor" />
</com.google.android.material.textfield.TextInputLayout>

Any ideas on how I can remove the tint?

Answer 1

<com.google.android.material.textfield.TextInputLayout
                style="@style/Widget.MaterialComponents.TextInputLayout.FilledBox.ExposedDropdownMenu"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_marginStart="8dp"
                    android:layout_marginEnd="8dp"
                    android:hint="@string/months_at_employment_hint"
                    app:boxBackgroundColor="@color/white">
    
                    <AutoCompleteTextView
                        android:id="@+id/months_at_employment_selection"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content" />
    
                </com.google.android.material.textfield.TextInputLayout>