Dentro do header.php, encontrei:
<?php do_action('gavernwp_doctype'); ?>
<html <?php do_action('gavernwp_html_attributes'); ?>>
<head>
<title><?php do_action('gavernwp_title'); ?></title>
<?php do_action('gavernwp_metatags'); ?>
E dentro de content.post.header.php
<?php if(get_the_title() != '') : ?>
<hgroup>
<h<?php echo (is_single()) ? '1' : '2'; ?>>
<?php if(!is_singular()) : ?>
<a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', GKTPLNAME ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark">
<?php endif; ?>
<?php the_title(); ?>
<?php if(!is_singular()) : ?>
</a>
<?php endif; ?>
<?php if(is_sticky()) : ?>
<sup>
<?php _e( 'Featured', GKTPLNAME ); ?>
</sup>
<?php endif; ?>
</h><?php echo (is_single()) ? '1' : '2'; ?>>
</hgroup>
<?php endif; ?>
<?php do_action('gavernwp_before_post_content'); ?>
Só não sei o que devo alterar agora,
para que o título fique personalizado
conforme eu queira?