diff -r 490d5cc509ed -r cf61fcea0001 wp/wp-content/themes/twentyseventeen/inc/customizer.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-content/themes/twentyseventeen/inc/customizer.php	Mon Oct 14 17:39:30 2019 +0200
@@ -0,0 +1,210 @@
+<?php
+/**
+ * Twenty Seventeen: Customizer
+ *
+ * @package WordPress
+ * @subpackage Twenty_Seventeen
+ * @since 1.0
+ */
+
+/**
+ * Add postMessage support for site title and description for the Theme Customizer.
+ *
+ * @param WP_Customize_Manager $wp_customize Theme Customizer object.
+ */
+function twentyseventeen_customize_register( $wp_customize ) {
+	$wp_customize->get_setting( 'blogname' )->transport          = 'postMessage';
+	$wp_customize->get_setting( 'blogdescription' )->transport   = 'postMessage';
+	$wp_customize->get_setting( 'header_textcolor' )->transport  = 'postMessage';
+
+	$wp_customize->selective_refresh->add_partial( 'blogname', array(
+		'selector' => '.site-title a',
+		'render_callback' => 'twentyseventeen_customize_partial_blogname',
+	) );
+	$wp_customize->selective_refresh->add_partial( 'blogdescription', array(
+		'selector' => '.site-description',
+		'render_callback' => 'twentyseventeen_customize_partial_blogdescription',
+	) );
+
+	/**
+	 * Custom colors.
+	 */
+	$wp_customize->add_setting( 'colorscheme', array(
+		'default'           => 'light',
+		'transport'         => 'postMessage',
+		'sanitize_callback' => 'twentyseventeen_sanitize_colorscheme',
+	) );
+
+	$wp_customize->add_setting( 'colorscheme_hue', array(
+		'default'           => 250,
+		'transport'         => 'postMessage',
+		'sanitize_callback' => 'absint', // The hue is stored as a positive integer.
+	) );
+
+	$wp_customize->add_control( 'colorscheme', array(
+		'type'    => 'radio',
+		'label'    => __( 'Color Scheme', 'twentyseventeen' ),
+		'choices'  => array(
+			'light'  => __( 'Light', 'twentyseventeen' ),
+			'dark'   => __( 'Dark', 'twentyseventeen' ),
+			'custom' => __( 'Custom', 'twentyseventeen' ),
+		),
+		'section'  => 'colors',
+		'priority' => 5,
+	) );
+
+	$wp_customize->add_control( new WP_Customize_Color_Control( $wp_customize, 'colorscheme_hue', array(
+		'mode' => 'hue',
+		'section'  => 'colors',
+		'priority' => 6,
+	) ) );
+
+	/**
+	 * Theme options.
+	 */
+	$wp_customize->add_section( 'theme_options', array(
+		'title'    => __( 'Theme Options', 'twentyseventeen' ),
+		'priority' => 130, // Before Additional CSS.
+	) );
+
+	$wp_customize->add_setting( 'page_layout', array(
+		'default'           => 'two-column',
+		'sanitize_callback' => 'twentyseventeen_sanitize_page_layout',
+		'transport'         => 'postMessage',
+	) );
+
+	$wp_customize->add_control( 'page_layout', array(
+		'label'       => __( 'Page Layout', 'twentyseventeen' ),
+		'section'     => 'theme_options',
+		'type'        => 'radio',
+		'description' => __( 'When the two-column layout is assigned, the page title is in one column and content is in the other.', 'twentyseventeen' ),
+		'choices'     => array(
+			'one-column' => __( 'One Column', 'twentyseventeen' ),
+			'two-column' => __( 'Two Column', 'twentyseventeen' ),
+		),
+		'active_callback' => 'twentyseventeen_is_view_with_layout_option',
+	) );
+
+	/**
+	 * Filter number of front page sections in Twenty Seventeen.
+	 *
+	 * @since Twenty Seventeen 1.0
+	 *
+	 * @param int $num_sections Number of front page sections.
+	 */
+	$num_sections = apply_filters( 'twentyseventeen_front_page_sections', 4 );
+
+	// Create a setting and control for each of the sections available in the theme.
+	for ( $i = 1; $i < ( 1 + $num_sections ); $i++ ) {
+		$wp_customize->add_setting( 'panel_' . $i, array(
+			'default'           => false,
+			'sanitize_callback' => 'absint',
+			'transport'         => 'postMessage',
+		) );
+
+		$wp_customize->add_control( 'panel_' . $i, array(
+			/* translators: %d is the front page section number */
+			'label'          => sprintf( __( 'Front Page Section %d Content', 'twentyseventeen' ), $i ),
+			'description'    => ( 1 !== $i ? '' : __( 'Select pages to feature in each area from the dropdowns. Add an image to a section by setting a featured image in the page editor. Empty sections will not be displayed.', 'twentyseventeen' ) ),
+			'section'        => 'theme_options',
+			'type'           => 'dropdown-pages',
+			'allow_addition' => true,
+			'active_callback' => 'twentyseventeen_is_static_front_page',
+		) );
+
+		$wp_customize->selective_refresh->add_partial( 'panel_' . $i, array(
+			'selector'            => '#panel' . $i,
+			'render_callback'     => 'twentyseventeen_front_page_section',
+			'container_inclusive' => true,
+		) );
+	}
+}
+add_action( 'customize_register', 'twentyseventeen_customize_register' );
+
+/**
+ * Sanitize the page layout options.
+ *
+ * @param string $input Page layout.
+ */
+function twentyseventeen_sanitize_page_layout( $input ) {
+	$valid = array(
+		'one-column' => __( 'One Column', 'twentyseventeen' ),
+		'two-column' => __( 'Two Column', 'twentyseventeen' ),
+	);
+
+	if ( array_key_exists( $input, $valid ) ) {
+		return $input;
+	}
+
+	return '';
+}
+
+/**
+ * Sanitize the colorscheme.
+ *
+ * @param string $input Color scheme.
+ */
+function twentyseventeen_sanitize_colorscheme( $input ) {
+	$valid = array( 'light', 'dark', 'custom' );
+
+	if ( in_array( $input, $valid, true ) ) {
+		return $input;
+	}
+
+	return 'light';
+}
+
+/**
+ * Render the site title for the selective refresh partial.
+ *
+ * @since Twenty Seventeen 1.0
+ * @see twentyseventeen_customize_register()
+ *
+ * @return void
+ */
+function twentyseventeen_customize_partial_blogname() {
+	bloginfo( 'name' );
+}
+
+/**
+ * Render the site tagline for the selective refresh partial.
+ *
+ * @since Twenty Seventeen 1.0
+ * @see twentyseventeen_customize_register()
+ *
+ * @return void
+ */
+function twentyseventeen_customize_partial_blogdescription() {
+	bloginfo( 'description' );
+}
+
+/**
+ * Return whether we're previewing the front page and it's a static page.
+ */
+function twentyseventeen_is_static_front_page() {
+	return ( is_front_page() && ! is_home() );
+}
+
+/**
+ * Return whether we're on a view that supports a one or two column layout.
+ */
+function twentyseventeen_is_view_with_layout_option() {
+	// This option is available on all pages. It's also available on archives when there isn't a sidebar.
+	return ( is_page() || ( is_archive() && ! is_active_sidebar( 'sidebar-1' ) ) );
+}
+
+/**
+ * Bind JS handlers to instantly live-preview changes.
+ */
+function twentyseventeen_customize_preview_js() {
+	wp_enqueue_script( 'twentyseventeen-customize-preview', get_theme_file_uri( '/assets/js/customize-preview.js' ), array( 'customize-preview' ), '1.0', true );
+}
+add_action( 'customize_preview_init', 'twentyseventeen_customize_preview_js' );
+
+/**
+ * Load dynamic logic for the customizer controls area.
+ */
+function twentyseventeen_panels_js() {
+	wp_enqueue_script( 'twentyseventeen-customize-controls', get_theme_file_uri( '/assets/js/customize-controls.js' ), array(), '1.0', true );
+}
+add_action( 'customize_controls_enqueue_scripts', 'twentyseventeen_panels_js' );