RecoReco/Template/board/task_icon.php

<?php $type = $this->RecoRecoHelper->iconType($task) ?>
<?php /* Calendar glyph (RecoReco is calendar recurrence), coloured by role so the template and its
         copies are distinct at a glance, and distinct from Kanboard's native refresh recurrence icon:
         dark blue = the recurring template (original), orange/dark-yellow = a generated copy.
         Inline colour is CSP-safe (style-src allows 'unsafe-inline'); no stylesheet needed. */ ?>
<?php if ($type === 'template'): ?>
    <span title="<?= t('RecoReco: recurring template') ?>">
        <i class="fa fa-calendar" style="color: #1f4e99;" role="img" aria-label="<?= t('RecoReco: recurring template') ?>"></i>
    </span>
<?php elseif ($type === 'clone'): ?>
    <span title="<?= t('RecoReco: generated copy') ?>">
        <i class="fa fa-calendar" style="color: #e08e0b;" role="img" aria-label="<?= t('RecoReco: generated copy') ?>"></i>
    </span>
<?php endif ?>