Wonderful

Thank you very much for your feedback!
You can display the markers of the current post via wp_get_post_terms() in the loop:

<?php

/*
 * List marker of a post
 */

$post_markers = wp_get_post_terms( $post->ID, 'marker' );

echo '<ul>';

foreach ( $post_markers as $post_marker ) :
  echo '<li>';
  echo __('Marker', 'textdomain') . ': ' . $post_marker->name  . '<br />';
  echo __('Color', 'textdomain') . ': ' . $post_marker->description . '<br />';
  echo '</li>';
endforeach;

echo '</ul>';

?>

Or show a list with all markers:

<?php

/*
 * List all markers
 */

$args = array(
  'taxonomy' => 'marker'
);

$makers = get_categories( $args );

echo '<ul>';

foreach ( $makers as $marker ) :
  echo '<li>';
  echo __('Marker', 'textdomain') . ': ' . $marker->name  . '<br />';
  echo __('Color', 'textdomain') . ': ' . $marker->description . '<br />';
  echo '</li>';
endforeach;

echo '</ul>';

?>

thx for your answer, the first code is ok exept the color (near the mark (example: 7/10) i have #000000.

I try to change it and to adapt it for my manage template (custom) and my AZ index with manual mark: https://www.bandofmovies.fr/cinechezmoi/archives/

Thks, i begin in code (and english lol)

I install a wonderful foncion but the plugin “Mark post” fonctionning for Article, Page but not in WPMovieLibrary (new). Anyone possible to help me for finish my installation. Thx a lot

Very Sorry it’s ok i have the option
thanks

(no possible to edit post in this forum?)