gravity-forms-css-icon.php

<?php

/**
* Add custom icons using Dashicons for Gravity Forms.
*
* This outputs some extra stlying to force Gravity Forms to use a modern
* dashicon in the wp-admin sidebar.
*
* @author  Robert Neu
* @link    http://melchoyce.github.io/dashicons/
*/
function prefix_gforms_admin_css() {
	$css = '<style type="text/css">';
		$css .= '#adminmenu #toplevel_page_gf_edit_forms div.wp-menu-image img { display: none }';
		$css .= '#adminmenu #toplevel_page_gf_edit_forms div.wp-menu-image:before { content: "\f175"; }';
	$css .= '</style>';
	echo $css;
}
add_action('admin_head', 'prefix_gforms_admin_css');