MDL-61298 theme Boost: Nav drawer icon improvements - fixes.

course/classes/management_renderer.php

@@ -244,7 +244,7 @@ public function category_listitem(coursecat $category, array $subcategories, $to
             );
         } else {
             $icon = $this->output->pix_icon(
-                'i/navigationitem',
+                'i/empty',
                 '',
                 'moodle',
                 array('class' => 'tree-icon', 'title' => get_string('showcategory', 'moodle', $text))

lib/classes/output/icon_system_fontawesome.php

@@ -190,6 +190,7 @@ public function get_core_icon_map() {
             'theme:fp/view_icon_active' => 'fa-th',
             'theme:fp/view_list_active' => 'fa-list',
             'theme:fp/view_tree_active' => 'fa-folder',
+            'core:i/addblock' => 'fa-plus-square',
             'core:i/assignroles' => 'fa-user-plus',
             'core:i/backup' => 'fa-file-zip-o',
             'core:i/badge' => 'fa-shield',
@@ -215,6 +216,7 @@ public function get_core_icon_map() {
             'core:i/duration' => 'fa-clock-o',
             'core:i/edit' => 'fa-pencil',
             'core:i/email' => 'fa-envelope',
+            'core:i/empty' => 'fa-fw',
             'core:i/enrolmentsuspended' => 'fa-pause',
             'core:i/enrolusers' => 'fa-user-plus',
             'core:i/expired' => 'fa-exclamation text-warning',

lib/navigationlib.php

@@ -1139,7 +1139,8 @@ public function __construct(moodle_page $page) {
                 'key' => 'home',
                 'type' => navigation_node::TYPE_SYSTEM,
                 'text' => get_string('home'),
-                'action' => new moodle_url('/')
+                'action' => new moodle_url('/'),
+                'icon' => new pix_icon('i/home', '')
             );
         } else {
             // We are using the users my moodle for the root element
@@ -1207,7 +1208,8 @@ public function initialise() {
         if (get_home_page() == HOMEPAGE_SITE) {
             // The home element should be my moodle because the root element is the site
             if (isloggedin() && !isguestuser()) {  // Makes no sense if you aren't logged in
-                $this->rootnodes['home'] = $this->add(get_string('myhome'), new moodle_url('/my/'), self::TYPE_SETTING, null, 'home');
+                $this->rootnodes['home'] = $this->add(get_string('myhome'), new moodle_url('/my/'),
+                    self::TYPE_SETTING, null, 'home', new pix_icon('i/dashboard', ''));
                 $this->rootnodes['home']->showinflatnavigation = true;
             }
         } else {
@@ -3908,6 +3910,7 @@ public function initialise() {
             $flat = new flat_navigation_node($addablock, 0);
             $flat->set_showdivider(true);
             $flat->key = 'addblock';
+            $flat->icon = new pix_icon('i/addblock', '');
             $this->add($flat);
             $blocks = [];
             foreach ($addable as $block) {