i18n: Contextualize "light" color translation strings.

This change helps translators to distinguish between color and font-family contexts.

Props ironprogrammer, audrasjb, tobifjellner, Presskopp, SergeyBiryukov, hellofromTonya.
Fixes #54804.

Built from https://develop.svn.wordpress.org/trunk@52588


git-svn-id: http://core.svn.wordpress.org/trunk@52176 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-theme.php

@@ -982,7 +982,7 @@ final class WP_Theme implements ArrayAccess {
 						'white'             => __( 'White' ),
 						'yellow'            => __( 'Yellow' ),
 						'dark'              => __( 'Dark' ),
-						'light'             => __( 'Light' ),
+						'light'             => _x( 'Light', 'color' ),
 						'fixed-layout'      => __( 'Fixed Layout' ),
 						'fluid-layout'      => __( 'Fluid Layout' ),
 						'responsive-layout' => __( 'Responsive Layout' ),

wp-includes/version.php

@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.0-alpha-52585';
+$wp_version = '6.0-alpha-52588';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.