diff --git a/src/wp-includes/class-wp-theme.php b/src/wp-includes/class-wp-theme.php
index 9697fb6a5d..04e3e0ade4 100644
--- a/src/wp-includes/class-wp-theme.php
+++ b/src/wp-includes/class-wp-theme.php
@@ -981,8 +981,8 @@ final class WP_Theme implements ArrayAccess {
 						'tan'               => __( 'Tan' ),
 						'white'             => __( 'White' ),
 						'yellow'            => __( 'Yellow' ),
-						'dark'              => __( 'Dark' ),
-						'light'             => _x( 'Light', 'color' ),
+						'dark'              => _x( 'Dark', 'color scheme' ),
+						'light'             => _x( 'Light', 'color scheme' ),
 						'fixed-layout'      => __( 'Fixed Layout' ),
 						'fluid-layout'      => __( 'Fluid Layout' ),
 						'responsive-layout' => __( 'Responsive Layout' ),