diff --git a/wp-admin/includes/class-custom-background.php b/wp-admin/includes/class-custom-background.php
index bc3c082bc3..5c65c6b282 100644
--- a/wp-admin/includes/class-custom-background.php
+++ b/wp-admin/includes/class-custom-background.php
@@ -117,8 +117,10 @@ class Custom_Background {
 
 		if ( isset( $_POST['reset-background'] ) ) {
 			check_admin_referer( 'custom-background-reset', '_wpnonce-custom-background-reset' );
+
 			remove_theme_mod( 'background_image' );
 			remove_theme_mod( 'background_image_thumb' );
+
 			$this->updated = true;
 			return;
 		}
@@ -126,8 +128,10 @@ class Custom_Background {
 		if ( isset( $_POST['remove-background'] ) ) {
 			// @todo Uploaded files are not removed here.
 			check_admin_referer( 'custom-background-remove', '_wpnonce-custom-background-remove' );
+
 			set_theme_mod( 'background_image', '' );
 			set_theme_mod( 'background_image_thumb', '' );
+
 			$this->updated = true;
 			wp_safe_redirect( $_POST['_wp_http_referer'] );
 			return;
@@ -204,8 +208,10 @@ class Custom_Background {
 
 		if ( isset( $_POST['background-color'] ) ) {
 			check_admin_referer( 'custom-background' );
+
 			$color = preg_replace( '/[^0-9a-fA-F]/', '', $_POST['background-color'] );
-			if ( strlen( $color ) == 6 || strlen( $color ) == 3 ) {
+
+			if ( strlen( $color ) === 6 || strlen( $color ) === 3 ) {
 				set_theme_mod( 'background_color', $color );
 			} else {
 				set_theme_mod( 'background_color', '' );
@@ -308,7 +314,7 @@ class Custom_Background {
 		<?php endif; ?>
 
 		<?php $default_image = get_theme_support( 'custom-background', 'default-image' ); ?>
-		<?php if ( $default_image && get_background_image() != $default_image ) : ?>
+		<?php if ( $default_image && get_background_image() !== $default_image ) : ?>
 <tr>
 <th scope="row"><?php _e( 'Restore Original Image' ); ?></th>
 <td>
@@ -484,6 +490,7 @@ class Custom_Background {
 		}
 
 		check_admin_referer( 'custom-background-upload', '_wpnonce-custom-background-upload' );
+
 		$overrides = array( 'test_form' => false );
 
 		$uploaded_file = $_FILES['import'];
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 57918d9d97..4ae2a747b8 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -13,7 +13,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.8-alpha-50705';
+$wp_version = '5.8-alpha-50706';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.