wp-admin/includes/class-wp-ms-themes-list-table.php:530Handles the checkbox column output.
$itemWP_Theme public function column_cb( $item ) { // Restores the more descriptive, specific name for use within this method. $theme = $item; $checkbox_id = 'checkbox_' . md5( $theme->get( 'Name' ) ); ?> <input type="checkbox" name="checked[]" value="<?php echo esc_attr( $theme->get_stylesheet() ); ?>" id="<?php echo $checkbox_id; ?>" /> <label for="<?php echo $checkbox_id; ?>" > <span class="screen-reader-text"> <?php printf( /* translators: Hidden accessibility text. %s: Theme name */ __( 'Select %s' ), $theme->display( 'Name' ) ); ?> </span> </label> <?php }Introduced in 4.3.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/class-wp-ms-themes-list-table.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.