SubwayTooter-Android-App/app/src/main/res/layout/act_column_customize.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/svContent"
    android:layout_width="match_parent"
    android:layout_height="match_parent"

    android:clipToPadding="false"
    android:fillViewport="true"
    android:paddingTop="12dp"
    android:paddingBottom="12dp"
    android:scrollbarStyle="outsideOverlay">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical">

        <View style="@style/setting_divider" />

        <TextView
            style="@style/setting_row_label"
            android:text="@string/column_header" />

        <LinearLayout style="@style/setting_row_form">

            <LinearLayout
                android:id="@+id/llColumnHeader"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_marginBottom="6dp"
                android:gravity="center_vertical"
                android:paddingStart="12dp"
                android:paddingTop="3dp"
                android:paddingEnd="12dp"
                android:paddingBottom="3dp"
                tools:ignore="UseCompoundDrawables">

                <ImageView
                    android:id="@+id/ivColumnHeader"
                    android:layout_width="32dp"
                    android:layout_height="32dp"
                    android:layout_marginEnd="4dp"
                    android:importantForAccessibility="no"
                    tools:src="@drawable/ic_bike" />

                <TextView
                    android:id="@+id/tvColumnName"
                    android:layout_width="0dp"
                    android:layout_height="wrap_content"
                    android:layout_weight="1"
                    tools:text="@string/federate_timeline" />
            </LinearLayout>

        </LinearLayout>

        <TextView
            style="@style/setting_row_label_indent1"
            android:text="@string/background_color" />

        <LinearLayout style="@style/setting_row_form">

            <Button
                android:id="@+id/btnHeaderBackgroundEdit"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/edit" />

            <Button
                android:id="@+id/btnHeaderBackgroundReset"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/reset" />

        </LinearLayout>

        <TextView
            style="@style/setting_row_label_indent1"
            android:text="@string/foreground_color" />

        <LinearLayout style="@style/setting_row_form">

            <Button
                android:id="@+id/btnHeaderTextEdit"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/edit"
                android:textAllCaps="false" />

            <Button
                android:id="@+id/btnHeaderTextReset"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/reset"
                android:textAllCaps="false" />

        </LinearLayout>

        <View style="@style/setting_divider" />

        <TextView
            style="@style/setting_row_label"
            android:text="@string/column" />

        <LinearLayout style="@style/setting_row_form">

            <FrameLayout
                android:id="@+id/flColumnBackground"
                android:layout_width="match_parent"
                android:layout_height="wrap_content">

                <ImageView
                    android:id="@+id/ivColumnBackground"
                    android:layout_width="match_parent"
                    android:layout_height="match_parent"
                    android:importantForAccessibility="no"
                    android:scaleType="centerCrop" />

                <LinearLayout
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:orientation="vertical"
                    android:padding="12dp">

                    <TextView
                        android:id="@+id/tvSampleAcct"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:ellipsize="end"
                        android:gravity="start"
                        android:maxLines="1"
                        android:text="@string/acct_sample"
                        android:textColor="?attr/colorTimeSmall"
                        android:textSize="12sp" />

                    <jp.juggler.subwaytooter.view.MyTextView
                        android:id="@+id/tvSampleContent"
                        android:layout_width="match_parent"
                        android:layout_height="wrap_content"
                        android:layout_marginTop="3dp"
                        android:gravity="start"
                        android:lineSpacingMultiplier="1.1"
                        android:text="@string/content_sample"
                        android:textColor="?attr/colorContentText" />
                </LinearLayout>
            </FrameLayout>

        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <TextView
                style="@style/setting_row_label"
                android:text="@string/background_color" />
        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <Button
                android:id="@+id/btnColumnBackgroundColor"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/edit"
                android:textAllCaps="false" />

            <Button
                android:id="@+id/btnColumnBackgroundColorReset"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/reset"
                android:textAllCaps="false" />

        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <TextView
                style="@style/setting_row_label"
                android:text="@string/background_image" />
        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <Button
                android:id="@+id/btnColumnBackgroundImage"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/pick_image"
                android:textAllCaps="false" />

            <Button
                android:id="@+id/btnColumnBackgroundImageReset"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/reset"
                android:textAllCaps="false" />

        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <TextView
                style="@style/setting_row_label"
                android:labelFor="@+id/etAlpha"
                android:text="@string/background_image_alpha" />
        </LinearLayout>

        <LinearLayout
            style="@style/setting_row_form"
            android:layout_height="48dp"
            android:baselineAligned="false"
            android:gravity="center_vertical">

            <View
                android:layout_width="0dp"
                android:layout_height="48dp" />

            <EditText
                android:id="@+id/etAlpha"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginEnd="4dp"
                android:digits="0123456789.,"
                android:importantForAutofill="no"
                android:inputType="numberDecimal"
                android:maxLines="1"
                android:minWidth="64dp"
                android:minLines="1" />

            <SeekBar
                android:id="@+id/sbColumnBackgroundAlpha"
                style="@style/setting_horizontal_stretch"
                android:layout_height="48dp"
                android:paddingStart="32dp"
                android:paddingEnd="32dp" />
        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <TextView
                style="@style/setting_row_label"
                android:text="@string/acct_color" />
        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <Button
                android:id="@+id/btnAcctColor"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/edit"
                android:textAllCaps="false" />

            <Button
                android:id="@+id/btnAcctColorReset"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/reset"
                android:textAllCaps="false" />

        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <TextView
                style="@style/setting_row_label"
                android:text="@string/content_color" />
        </LinearLayout>

        <LinearLayout style="@style/setting_row_form">

            <Button
                android:id="@+id/btnContentColor"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/edit"
                android:textAllCaps="false" />

            <Button
                android:id="@+id/btnContentColorReset"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="@string/reset"
                android:textAllCaps="false" />
        </LinearLayout>

        <View style="@style/setting_divider" />

    </LinearLayout>
</ScrollView>