Ticket #20600: 20600.diff

class-wp-customize.php

@@ -560 +560 @@
                 ) );
 
                 $this->add_setting( 'header_textcolor', array(
-                        // @todo: replace with a new accept() setting method
-                        // 'sanitize_callback' => 'sanitize_hexcolor',
+                        'sanitize_callback' => 'sanitize_header_textcolor',
                         'theme_supports' => array( 'custom-header', 'header-text' ),
                         'default'        => get_theme_support( 'custom-header', 'default-text-color' ),
                 ) );
@@ -789 +788 @@
         }
 };
 
+// Callback function for sanitizing the header textcolor setting.
+function sanitize_header_textcolor( $color ) {
+        if ( empty( $color ) )
+                return get_theme_support( 'custom-header', 'default-text-color' );
+
+        elseif ( $color == 'blank' )
+                return 'blank';
+
+        return sanitize_hexcolor( $color );
+}
+
 // Callback function for sanitizing a hex color
 function sanitize_hexcolor( $color ) {
         $color = preg_replace( '/[^0-9a-fA-F]/', '', $color );