默认头像和favicon

---

/*-----------------------------------------------------------------------------------*/
# Custom Gravatar
/*-----------------------------------------------------------------------------------*/
function tie_custom_gravatar ($avatar) {
	$tie_gravatar = tie_get_option( 'gravatar' );
	if($tie_gravatar){
		$custom_avatar = tie_get_option( 'gravatar' );
		$avatar[$custom_avatar] = "Custom Gravatar";
	}
	return $avatar;
}
add_filter( 'avatar_defaults', 'tie_custom_gravatar' );


/*-----------------------------------------------------------------------------------*/
# Custom Favicon
/*-----------------------------------------------------------------------------------*/
function tie_favicon() {
	$default_favicon = get_template_directory_uri()."/favicon.ico";
	$custom_favicon = tie_get_option('favicon');
	$favicon = (empty($custom_favicon)) ? $default_favicon : $custom_favicon;
	echo '<link rel="shortcut icon" href="'.$favicon.'" title="Favicon" />';
}
add_action('wp_head', 'tie_favicon');

---