Meta Slider - Layer Editor - Add fonts

/**
 * Installation: Copy and paste this code into your themes functions.php file.
 *
 * NOTES: This will only add font options into the layer editor font dropdown menu, 
 * - it will not load the actual font from google onto your site
 * - use a plugin like http://wordpress.org/plugins/wp-google-fonts/ to load the fonts onto your site
 * - if you're using google fonts, you won't see the font applied to the text in the layer editor itself,
 * but you will do when you view the slideshow on your site
 */
function metaslider_add_custom_fonts_to_layer_editor($custom_fonts) {
	// define fonts in the format of "Display Title/fontFace". Each font seperated with a semi colon.
	return "Raleway/raleway; Kavoon/kavoon; Roboto/roboto";
}
add_filter('metaslider_layer_editor_fonts', 'metaslider_add_custom_fonts_to_layer_editor');