{#
/**
 * @file
 * Default theme implementation for the Appearance page.
 *
 * Available variables:
 * - attributes: HTML attributes for the main container.
 * - theme_groups: A list of theme groups. Each theme group contains:
 *   - attributes: HTML attributes specific to this theme group.
 *   - title: Title for the theme group.
 *   - state: State of the theme group, e.g. installed or uninstalled.
 *   - themes: A list of themes within the theme group. Each theme contains:
 *     - attributes: HTML attributes specific to this theme.
 *     - screenshot: A screenshot representing the theme.
 *     - description: Description of the theme.
 *     - name: Theme name.
 *     - version: The theme's version number.
 *     - is_default: Boolean indicating whether the theme is the default theme
 *       or not.
 *     - is_admin: Boolean indicating whether the theme is the admin theme or
 *       not.
 *     - notes: Identifies what context this theme is being used in, e.g.,
 *       default theme, admin theme.
 *     - incompatible: Text describing any compatibility issues.
 *     - operations: A list of operation links, e.g., Settings, Enable, Disable,
 *       etc. these links should only be displayed if the theme is compatible.
 *
 * @see template_preprocess_system_themes_page()
 *
 * @ingroup themeable
 */
#}
<div{{ attributes }}>
  {% for theme_group in theme_groups %}
    {%
      set theme_group_classes = [
        'system-themes-list',
        'system-themes-list-' ~ theme_group.state,
        'clearfix',
      ]
    %}
    <div{{ theme_group.attributes.addClass(theme_group_classes) }}>
      <h2 class="system-themes-list__header">{{ theme_group.title }}</h2>
      {% for theme in theme_group.themes %}
        {%
          set theme_classes = [
            theme.is_default ? 'theme-default',
            theme.is_admin ? 'theme-admin',
            'theme-selector',
            'clearfix',
          ]
        %}
        <div{{ theme.attributes.addClass(theme_classes) }}>
          {% if theme.screenshot %}
            {{ theme.screenshot }}
          {% endif %}
          <div class="theme-info">
            <h3 class="theme-info__header">
              {{- theme.name }} {{ theme.version -}}
              {% if theme.notes %}
                ({{ theme.notes|safe_join(', ') }})
              {%- endif -%}
            </h3>
            <div class="theme-info__description">{{ theme.description }}</div>
            {# Display operation links if the theme is compatible. #}
            {% if theme.incompatible %}
              <div class="incompatible">{{ theme.incompatible }}</div>
            {% else %}
              {{ theme.operations }}
            {% endif %}
          </div>
        </div>
      {% endfor %}
    </div>
  {% endfor %}
</div>