diff -r 34716fd837a4 -r be944660c56a wp/wp-includes/customize/class-wp-customize-background-position-control.php
--- a/wp/wp-includes/customize/class-wp-customize-background-position-control.php	Tue Dec 15 15:52:01 2020 +0100
+++ b/wp/wp-includes/customize/class-wp-customize-background-position-control.php	Wed Sep 21 18:19:35 2022 +0200
@@ -96,7 +96,7 @@
 					<div class="button-group">
 					<?php foreach ( $group as $value => $input ) : ?>
 						<label>
-							<input class="screen-reader-text" name="background-position" type="radio" value="<?php echo esc_attr( $value ); ?>">
+							<input class="ui-helper-hidden-accessible" name="background-position" type="radio" value="<?php echo esc_attr( $value ); ?>">
 							<span class="button display-options position"><span class="<?php echo esc_attr( $input['icon'] ); ?>" aria-hidden="true"></span></span>
 							<span class="screen-reader-text"><?php echo $input['label']; ?></span>
 						</label>