FossifyGallery/app/src/main/res/layout/activity_widget_config.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/config_coordinator"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/config_app_bar_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <com.google.android.material.appbar.MaterialToolbar
            android:id="@+id/config_toolbar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"
            android:background="@color/color_primary"
            app:title="@string/app_launcher_name"
            app:titleTextAppearance="@style/AppTheme.ActionBar.TitleTextStyle" />

    </com.google.android.material.appbar.AppBarLayout>

    <RelativeLayout
        android:id="@+id/config_holder"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_margin="@dimen/activity_margin"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">

        <RelativeLayout
            android:id="@+id/folder_picker_holder"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:paddingBottom="@dimen/activity_margin">

            <RelativeLayout
                android:id="@+id/folder_picker_show_folder_name_holder"
                style="@style/SettingsHolderCheckboxStyle"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:background="?attr/selectableItemBackground">

                <com.simplemobiletools.commons.views.MyAppCompatCheckbox
                    android:id="@+id/folder_picker_show_folder_name"
                    style="@style/SettingsCheckboxStyle"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:text="@string/show_folder_name" />

            </RelativeLayout>

            <com.simplemobiletools.commons.views.MyTextView
                android:id="@+id/folder_picker_label"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/folder_picker_show_folder_name_holder"
                android:layout_marginTop="@dimen/small_margin"
                android:layout_marginBottom="@dimen/normal_margin"
                android:paddingStart="@dimen/activity_margin"
                android:text="@string/folder_on_widget" />

            <com.simplemobiletools.commons.views.MyTextView
                android:id="@+id/folder_picker_value"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_below="@+id/folder_picker_label"
                android:layout_marginStart="@dimen/activity_margin"
                android:background="@drawable/button_background"
                android:padding="@dimen/normal_margin"
                tools:text="@string/internal" />

        </RelativeLayout>

        <RelativeLayout
            android:id="@+id/config_image_holder"
            android:layout_width="160dp"
            android:layout_height="wrap_content"
            android:layout_below="@+id/folder_picker_holder"
            android:layout_marginTop="@dimen/activity_margin"
            android:background="@drawable/widget_round_background">

            <com.simplemobiletools.commons.views.MySquareImageView
                android:id="@+id/config_image"
                android:layout_width="@dimen/widget_initial_size"
                android:layout_height="@dimen/widget_initial_size"
                android:layout_centerHorizontal="true"
                android:layout_marginStart="@dimen/normal_margin"
                android:layout_marginTop="@dimen/small_margin"
                android:layout_marginEnd="@dimen/normal_margin"
                android:layout_marginBottom="@dimen/small_margin" />

            <com.simplemobiletools.commons.views.MyTextView
                android:id="@+id/config_folder_name"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_below="@+id/config_image"
                android:ellipsize="end"
                android:gravity="center"
                android:includeFontPadding="false"
                android:lines="1"
                android:paddingBottom="@dimen/small_margin"
                android:textSize="@dimen/bigger_text_size"
                tools:text="@string/internal" />

        </RelativeLayout>

        <ImageView
            android:id="@+id/config_bg_color"
            android:layout_width="@dimen/widget_colorpicker_size"
            android:layout_height="@dimen/widget_colorpicker_size"
            android:layout_above="@+id/config_text_color"
            android:layout_margin="@dimen/tiny_margin" />

        <RelativeLayout
            android:id="@+id/config_bg_seekbar_holder"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_alignTop="@+id/config_bg_color"
            android:layout_alignBottom="@+id/config_bg_color"
            android:layout_marginStart="@dimen/medium_margin"
            android:layout_toEndOf="@+id/config_bg_color"
            android:background="@drawable/widget_config_seekbar_background">

            <com.simplemobiletools.commons.views.MySeekBar
                android:id="@+id/config_bg_seekbar"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_centerVertical="true"
                android:paddingLeft="@dimen/activity_margin"
                android:paddingRight="@dimen/activity_margin" />

        </RelativeLayout>

        <ImageView
            android:id="@+id/config_text_color"
            android:layout_width="@dimen/widget_colorpicker_size"
            android:layout_height="@dimen/widget_colorpicker_size"
            android:layout_alignParentBottom="true"
            android:layout_margin="@dimen/tiny_margin" />

        <Button
            android:id="@+id/config_save"
            style="@style/MyWidgetConfigSaveStyle"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_alignParentBottom="true"
            android:text="@string/ok" />

    </RelativeLayout>
</androidx.coordinatorlayout.widget.CoordinatorLayout>