View file themes/default/apps/cpanel/assets/themes/content.phtml

<div class="cp-app-container" data-app="themes">
    <div class="current-page-name">
        <div class="lp">
            <h2>
                UI Themes
            </h2>
            <ol class="breadcrumb">
                <li>
                    <a href="<?php echo cl_link('admin_panel'); ?>">
                        Control panel
                    </a>
                </li>
                <li class="active">
                    <a href="javascript:void(0);">
                        UI Themes
                    </a>
                </li> 
            </ol>
        </div>
    </div>
    <div class="row">
        <div class="col-lg-12 col-md-12 col-sm-12 col-xs-12">
            <div class="card">
                <div class="header">
                    <h2>
                        Manage UI Themes
                    </h2>
                </div>
                <div class="body responsive">
                    <div class="inline-alertbox-wrapper">
                        <div class="inline-alertbox warning">
                            <div class="icon">
                                <?php echo cl_ikon("danger"); ?>
                            </div>
                            <div class="alert-message">
                                <p>
                                    Please note that for correct operation and functionality, the theme must fully comply with the current script update. This is not the case for the default theme.
                                </p>
                            </div>
                        </div>
                    </div>
                    <table class="table">
                        <thead>
                            <th>
                                Theme name
                            </th>
                            <th>
                                Theme author
                            </th>
                            <th>
                                Version
                            </th>
                            <th>
                                Source
                            </th>
                            <th>
                                Actions
                            </th>
                        </thead>
                        <tbody>
                            <?php foreach ($cl["themes"] as $theme): ?>
                                <tr>
                                    <td>
                                        <?php echo $theme["name"]; ?>
                                    </td>
                                    <td>
                                        <?php echo $theme["author"]; ?>
                                    </td>
                                    <td>
                                        <?php echo $theme["version"]; ?>
                                    </td>
                                    <td>
                                        <code>
                                            <?php echo cl_strf("themes/%s", $theme["src"]); ?>
                                        </code>
                                    </td>
                                    <td>
                                        <?php if ($theme["src"] == $cl["config"]["theme"]): ?>
                                            <span class="badge bg-red">
                                                Current theme
                                            </span>
                                        <?php else: ?>
                                            <button class="btn ttup btn-md bg-blue" onclick="SMC_CPanel.PS.activate_theme('<?php echo $theme["src"] ?>', this);">
                                                Activate
                                            </button>
                                        <?php endif; ?>
                                    </td>
                                </tr>
                            <?php endforeach; ?>
                        </tbody>
                    </table>
                </div>
            </div>
        </div>
    </div>
</div>
<?php echo cl_template('cpanel/assets/themes/scripts/app_master_script'); ?>