Karuna: Update custom header code, to pass the WordPress.org theme check.

karuna/inc/custom-header.php

@@ -52,9 +52,9 @@ if ( ! function_exists( 'karuna_header_style' ) ) :
 function karuna_header_style() {
 	$header_text_color = get_header_textcolor();
 
-	// If no custom options for text are set, let's bail
-	// get_header_textcolor() options: HEADER_TEXTCOLOR is default, hide text (returns 'blank') or any hex value.
-	if ( HEADER_TEXTCOLOR == $header_text_color ) {
+	// If no custom options for text are set, let's bail.
+	// get_header_textcolor() options: add_theme_support( 'custom-header' ) is default, hide text (returns 'blank') or any hex value.
+	if ( get_theme_support( 'custom-header', 'default-text-color' ) === $header_text_color ) {
 		return;
 	}