all-in-one-event-calendar/public/admin/themes.php

<?php if( $activated ) : ?>
    <div id="message2" class="updated">
        <p>
            <?php printf( __( 'New theme activated. <a href="%s">Visit site</a>' ), home_url( '/' ) ); ?>
        </p>
    </div>
<?php elseif( $deleted ) : ?>
    <div id="message3" class="updated">
        <p>
            <?php _e( 'Theme deleted.', AI1EC_PLUGIN_NAME ) ?>
        </p>
    </div>
<?php endif; ?>

<div class="wrap">
    <h2><?php echo esc_html( $page_title ); ?></h2>
    <h3><?php _e( 'Current Calendar Theme', AI1EC_PLUGIN_NAME ); ?></h3>
    <div id="current-theme"<?php echo ( $ct->screenshot ) ? ' class="has-screenshot"' : '' ?>>
    <?php if ( $ct->screenshot ) : ?>
    <img src="<?php echo $ct->theme_root_uri . '/' . $ct->stylesheet . '/' . $ct->screenshot; ?>" alt="<?php esc_attr_e('Current theme preview', AI1EC_PLUGIN_NAME); ?>" />
    <?php endif; ?>
    <h4><?php
        /* translators: 1: theme title, 2: theme version, 3: theme author */
        printf(__('%1$s %2$s by %3$s', AI1EC_PLUGIN_NAME ), $ct->title, $ct->version, $ct->author) ; ?></h4>
    <p class="theme-description"><?php echo $ct->description; ?></p>
    <div class="theme-options">
        <?php if ( $ct->tags ) : ?>
        <p><?php _e( 'Tags:', AI1EC_PLUGIN_NAME ); ?> <?php echo join(', ', $ct->tags); ?></p>
        <?php endif; ?>
    </div>
    <?php theme_update_available($ct); ?>

    </div>

    <br class="clear" />
    <?php
    if (
        ! current_user_can( 'switch_themes' ) &&
        ! current_user_can( 'switch_ai1ec_themes' )
    ) {
        echo '</div>';
        return false;
    }
    ?>

    <h3><?php _e( 'Available Calendar Themes', AI1EC_PLUGIN_NAME ); ?></h3>

    <?php $wp_list_table->display(); ?>

    <br class="clear" />

    </div>