+ // Add custom description to Colors and Background controls or sections.
+ if ( property_exists( $wp_customize->get_control( 'background_color' ), 'description' ) ) {
+ $wp_customize->get_control( 'background_color' )->description = __( 'May only be visible on wide screens.', 'twentyfourteen' );
+ $wp_customize->get_control( 'background_image' )->description = __( 'May only be visible on wide screens.', 'twentyfourteen' );
+ } else {
+ $wp_customize->get_section( 'colors' )->description = __( 'Background may only be visible on wide screens.', 'twentyfourteen' );
+ $wp_customize->get_section( 'background_image' )->description = __( 'Background may only be visible on wide screens.', 'twentyfourteen' );
+ }
+