Add google fonts to theme options

functions.php

<?php
// Defines the font stacks displayed in Theme Options

function st_custom_theme_fonts() {
$default = array(
'lato' => 'Lato',
'helvetica' => 'Helvetica',
'arial' => 'Arial',
'tahoma' => 'Tahoma',
'georgia' => 'Georgia',
'cambria' => 'Cambria',
'palatino' => 'Palatino',
'droidsans' => 'Droid Sans',
'droidserif' => 'Droid Serif'
);
return $default;
}
add_filter( 'of_recognized_font_faces', 'st_custom_theme_fonts' );


// Defines the font stacks used in CSS

function st_custom_font_stacks() {
$default = array(
'lato' => '"Lato", sans-serif',
'helvetica' => '"HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif',
'arial' => 'Arial, Helvetica, sans-serif',
'georgia' => 'Constantia, "Lucida Bright", Lucidabright, "Lucida Serif", Lucida, "DejaVu Serif", "Bitstream Vera Serif", "Liberation Serif", Georgia, serif',
'cambria' => 'Cambria, "Hoefler Text", Utopia, "Liberation Serif", "Nimbus Roman No9 L Regular", Times, "Times New Roman", serif',
'tahoma' => 'Tahoma, Verdana, Segoe, sans-serif',
'palatino' => '"Palatino Linotype", Palatino, Baskerville, Georgia, serif',
'droidsans' => '"Droid Sans", sans-serif',
'droidserif' => '"Droid Serif", serif',
);
return $default;
}
add_filter( 'st_font_faces', 'st_custom_font_stacks' );

// Load Google Fonts
// Add multiple fonts with the Pipe "|" character
// Example: family?family=Font+Name1:variants|Font+Name2:variants

function st_load_google_fonts() {
wp_register_style('googleFonts', 'http://fonts.googleapis.com/css?family=Lato:100,300,400');
wp_enqueue_style( 'googleFonts');
}

add_action('wp_print_styles', 'st_load_google_fonts');


// Adds additional settings to use specific font weights

function st_font_weights() {
$default = array(
'normal' => 'Normal',
'italic' => 'Italic',
'bold' => 'Bold',
'bold italic' => 'Bold Italic',
'100' => '100',
'200' => '200',
'300' => '300',
'400' => '400',
'500' => '500',
'600' => '600',
'700' => '700',
'800' => '800'
);
return $default;
}
add_filter( 'of_recognized_font_styles', 'st_font_weights' );
?>