diff --git a/assign_edit_grade_form.php b/assign_edit_grade_form.php
index 92c6e16..0dea9b5 100644
--- a/assign_edit_grade_form.php
+++ b/assign_edit_grade_form.php
@@ -127,7 +127,7 @@ function definition() {
         $mform->addElement('html', '<div class="'.$gradeviewclass.'">');
         $cm = get_coursemodule_from_instance("assign", $assignment->get_instance()->id, $assignment->get_course()->id);
         $mform->addElement('html', '<a href="'.$CFG->wwwroot.'/mod/assign/view.php?id='.$cm->id.'"><img src="'.
-            $OUTPUT->pix_url('popup', 'scorm').'"> '.
+            $OUTPUT->image_url('popup', 'scorm').'"> '.
             get_string('moodledefaultview', 'block_fn_marking').'</a>');
         $mform->addElement('html', '</div>');
 
@@ -669,7 +669,7 @@ class="marking_header_link" title="Assignment" href="'.$CFG->wwwroot.'/mod/assig
         $mform->addElement('html', '<td width="35%" align="right" class="rightSide">');
 
         if ($overriden) {
-            $locked = '<img class="ned-locked-icon" width="16" height="16" alt="Locked" src="'.$OUTPUT->pix_url('t/locked', '').'">';
+            $locked = '<img class="ned-locked-icon" width="16" height="16" alt="Locked" src="'.$OUTPUT->image_url('t/locked', '').'">';
             $mform->addElement('html', get_string('gradeoverridedetected', 'block_fn_marking').' '.$locked);
         } else {
             $buttonarray = array();
diff --git a/block_fn_marking.php b/block_fn_marking.php
index 0e98c1e..7a71027 100644
--- a/block_fn_marking.php
+++ b/block_fn_marking.php
@@ -287,14 +287,14 @@ class="icon" alt="">';
                 $this->content->items[] = '<a href="' . $CFG->wwwroot . '/blocks/fn_marking/progress_report.php?id=' .
                     $this->page->course->id .
                     '">' . get_string('simplegradebook', 'block_fn_marking') . '</a>';
-                $this->content->icons[] = "<img src=\"" . $OUTPUT->pix_url('i/grades') . "\" class=\"icon\" alt=\"\" />";
+                $this->content->icons[] = "<img src=\"" . $OUTPUT->image_url('i/grades') . "\" class=\"icon\" alt=\"\" />";
             }
 
             if (isset($this->config->showreportslink) && $this->config->showreportslink) {
                 $this->content->items[] = '<a href="' . $CFG->wwwroot . '/user/index.php?contextid='.$context->id.
                     '&sifirst=&silast=&roleid=5">' .
                     get_string('studentlist', 'block_fn_marking') . '</a>';
-                $this->content->icons[] = "<img src=\"" . $OUTPUT->pix_url('i/group') . "\" class=\"icon\" alt=\"\" />";
+                $this->content->icons[] = "<img src=\"" . $OUTPUT->image_url('i/group') . "\" class=\"icon\" alt=\"\" />";
             }
 
             if (($this->config->shownotloggedinuser || $this->config->showstudentnotsubmittedassignment
@@ -347,7 +347,7 @@ class="icon" alt="">';
                     $humantime = get_string('lastrefreshupdating', 'block_fn_marking');
                 }
 
-                $refreshicon = html_writer::img($OUTPUT->pix_url('refresh_button', 'block_fn_marking'), '', null);
+                $refreshicon = html_writer::img($OUTPUT->image_url('refresh_button', 'block_fn_marking'), '', null);
                 $refreshbutton = html_writer::link(
                     new moodle_url('/blocks/fn_marking/update_cache.php'),
                     $refreshicon,
@@ -405,7 +405,7 @@ private function get_frontpage_content() {
                 $humantime = get_string('lastrefreshupdating', 'block_fn_marking');
             }
 
-            $refreshicon = html_writer::img($OUTPUT->pix_url('refresh_button', 'block_fn_marking'), '', null);
+            $refreshicon = html_writer::img($OUTPUT->image_url('refresh_button', 'block_fn_marking'), '', null);
             $refreshbutton = html_writer::link(
                 new moodle_url('/blocks/fn_marking/update_cache.php'),
                 $refreshicon,
diff --git a/fn_gradebook.php b/fn_gradebook.php
index b949b79..b8053dc 100644
--- a/fn_gradebook.php
+++ b/fn_gradebook.php
@@ -226,7 +226,7 @@
 );
 
 $select = new single_select($urlview, 'view', $viewopts, $selected = $view, '');
-$select->label =  html_writer::img($OUTPUT->pix_url('i/hide'), '');
+$select->label =  html_writer::img($OUTPUT->image_url('i/hide'), '');
 $select->formid = 'fnview';
 $viewform = '<div class="groupselector">'.$OUTPUT->render($select).'</div>';
 
@@ -522,7 +522,7 @@
 
                             $image = "<a href=\"$CFG->wwwroot/mod/$mod->modname/view.php?id=$mod->id\"" .
                                 "   title=\"$mod->name\">" .
-                                '<img class="actionicon" width="16" height="16" alt="'.$mod->name.'" src="'.$OUTPUT->pix_url('icon', $mod->modname).'">'.
+                                '<img class="actionicon" width="16" height="16" alt="'.$mod->name.'" src="'.$OUTPUT->image_url('icon', $mod->modname).'">'.
                                 "</a>";
 
 
@@ -614,7 +614,7 @@
 );
 $activitytypeselect = new single_select($activitytypeurl, 'activity_type', $activitytypeopts, $activitytype, '');
 $activitytypeselect->formid = 'fn_activity_type';
-$activitytypeselect->label =  html_writer::img($OUTPUT->pix_url('i/preview'), '');
+$activitytypeselect->label =  html_writer::img($OUTPUT->image_url('i/preview'), '');
 $activitytypeform = '<div class="groupselector">'.$OUTPUT->render($activitytypeselect).'</div>';
 
 // PARTICIPANTS.
@@ -644,7 +644,7 @@
 );
 $participantsselect = new single_select($participantsurl, 'participants', $participantsopts, $participants, '');
 $participantsselect->formid = 'fn_participants';
-$participantsselect->label = html_writer::img($OUTPUT->pix_url('i/user'), '');
+$participantsselect->label = html_writer::img($OUTPUT->image_url('i/user'), '');
 $participantsform = '<div class="groupselector">'.$OUTPUT->render($participantsselect).'</div>';
 
 echo '<div class="fn-menuwrapper">';
@@ -670,7 +670,7 @@
 echo $viewform . " ";
 
 echo html_writer::link('#',
-    html_writer::img($OUTPUT->pix_url('fullscreen', 'block_fn_marking'), ''),
+    html_writer::img($OUTPUT->image_url('fullscreen', 'block_fn_marking'), ''),
     array('class' => 'ned-hide-blocks')
 );
 
@@ -705,7 +705,7 @@
 if ($gradeitem = $DB->get_record('grade_items', array('courseid' => $courseid, 'itemtype' => 'course'))) {
     if ($gradeitem->gradetype == GRADE_TYPE_NONE) {
         $nocorseaveragemsg = '<div class="course-average-warning"><img class="actionicon" width="16" height="16" alt="" src="'.
-            $OUTPUT->pix_url('i/risk_xss', '').'"> '.get_string('nocoursetotal', 'block_fn_mentor').'<div>';
+            $OUTPUT->image_url('i/risk_xss', '').'"> '.get_string('nocoursetotal', 'block_fn_mentor').'<div>';
     }
 }
 
diff --git a/forum.submissions.fn.php b/forum.submissions.fn.php
index 6e34865..94efbf6 100644
--- a/forum.submissions.fn.php
+++ b/forum.submissions.fn.php
@@ -132,7 +132,7 @@
 
         $o .= '<div class="default-grade-view-nobtn">';
         $o .= '<a href="'.$CFG->wwwroot.'/mod/forum/view.php?id='.$cm->id.'"><img src="'.
-            $OUTPUT->pix_url('popup', 'scorm').'"> '.
+            $OUTPUT->image_url('popup', 'scorm').'"> '.
             get_string('moodledefaultview', 'block_fn_marking').'</a>';
         $o .= '</div>';
 
@@ -252,7 +252,7 @@
     }
 }
 
-$vars = array('mid' => $mid, 'spinner' => $OUTPUT->pix_url('i/loading').'');
+$vars = array('mid' => $mid, 'spinner' => $OUTPUT->image_url('i/loading').'');
 
 $jsmodule1 = array(
     'name' => 'M.show_forum_panel',
diff --git a/journal.submissions.fn.php b/journal.submissions.fn.php
index 4dfe39b..3e6cc75 100644
--- a/journal.submissions.fn.php
+++ b/journal.submissions.fn.php
@@ -256,7 +256,7 @@
 
             $o .= '<div class="'.$gradeviewclass.'">';
             $o .= '<a href="'.$CFG->wwwroot.'/mod/journal/report.php?id='.$cm->id.'"><img src="'.
-                $OUTPUT->pix_url('popup', 'scorm').'"> '.
+                $OUTPUT->image_url('popup', 'scorm').'"> '.
                 get_string('moodledefaultview', 'block_fn_marking').'</a>';
             $o .= '</div>';
 
@@ -286,7 +286,7 @@
             $o .= '</td>';
             $o .= '<td width="35%" align="right" class="rightSide">';
             if ($overriden) {
-                $locked = '<img class="ned-locked-icon" width="16" height="16" alt="Locked" src="'.$OUTPUT->pix_url('t/locked', '').'">';
+                $locked = '<img class="ned-locked-icon" width="16" height="16" alt="Locked" src="'.$OUTPUT->image_url('t/locked', '').'">';
                 $o .= get_string('gradeoverridedetected', 'block_fn_marking').' '.$locked;
             } else {
                 $o .= "<input type=\"submit\" value=\"" . get_string('save', 'block_fn_marking') . "\" />";
diff --git a/lib.php b/lib.php
index 68269cf..8c89e79 100644
--- a/lib.php
+++ b/lib.php
@@ -1599,7 +1599,7 @@ function block_fn_marking_view_submissions($mform, $offset=0, $showattemptnumber
         if (count($unsubmitted) > 0) {
             $url = new moodle_url('/mod/'.$cm->modname.'/view.php', array('id' => $cm->id));
             $image = '<a href="'.$url->out().'"><img width="16" height="16" alt="'.
-                $cm->modname.'" src="'.$OUTPUT->pix_url('icon', $cm->modname).'"></a>';
+                $cm->modname.'" src="'.$OUTPUT->image_url('icon', $cm->modname).'"></a>';
 
             $o .= '<div class="unsubmitted_header">' . $image .
                 " Assignment: <A HREF=\"$CFG->wwwroot/mod/$cm->modname/view.php?id=$cm->id\"  TITLE=\"$cm->modname\">" .
@@ -2923,7 +2923,7 @@ function block_fn_marking_build_ungraded_tree ($courses, $supportedmodules, $cla
                 $totalungraded += $numunmarked;
                 $gradelink = $CFG->wwwroot . '/blocks/fn_marking/fn_gradebook.php?courseid=' .
                     $course->id . '&show=unmarked' . '&navlevel=top&mid=0&activity_type=' . $supportedmodule;
-                $moduleicon = '<img src="' . $OUTPUT->pix_url('icon', $supportedmodule) . '" class="icon" alt="">';
+                $moduleicon = '<img src="' . $OUTPUT->image_url('icon', $supportedmodule) . '" class="icon" alt="">';
 
                 if ($numunmarked) {
                     $moduletext .= '<dd id="cmid' . $supportedmodule . '" class="module ' . $classforhide . '">' . "\n";
@@ -3235,7 +3235,7 @@ function block_fn_marking_footer() {
         html_writer::div(
             html_writer::link(
                 'http://ned.ca',
-                html_writer::img($OUTPUT->pix_url('ned_26', 'block_fn_marking'), 'NED'),
+                html_writer::img($OUTPUT->image_url('ned_26', 'block_fn_marking'), 'NED'),
                 array('target' => '_blank')
             ),
             'markingmanagercontainer-footer-right'
@@ -3539,10 +3539,10 @@ function block_fn_marking_groups_print_course_menu($course, $urlroot, $return=fa
 
     if (count($groupsmenu) == 1) {
         $groupname = reset($groupsmenu);
-        $output = html_writer::img($OUTPUT->pix_url('i/users'), '').' '.$groupname;
+        $output = html_writer::img($OUTPUT->image_url('i/users'), '').' '.$groupname;
     } else {
         $select = new single_select(new moodle_url($urlroot), 'group', $groupsmenu, $activegroup, null, 'selectgroup');
-        $select->label = html_writer::img($OUTPUT->pix_url('i/users'), '');
+        $select->label = html_writer::img($OUTPUT->image_url('i/users'), '');
         $output = $OUTPUT->render($select);
     }
 
@@ -3614,7 +3614,7 @@ function block_fn_marking_view_journal_submissions($journal, $students, $cm, $co
         if (count($attempts) > 0) {
             $url = new moodle_url('/mod/'.$cm->modname.'/view.php', array('id' => $cm->id));
             $image = '<a href="'.$url->out().'"><img width="16" height="16" alt="'.
-                $cm->modname.'" src="'.$OUTPUT->pix_url('icon', $cm->modname).'"></a>';
+                $cm->modname.'" src="'.$OUTPUT->image_url('icon', $cm->modname).'"></a>';
 
             $o .= '<div class="unsubmitted_header">' . $image .
                 " Journal: <A HREF=\"$CFG->wwwroot/mod/$cm->modname/view.php?id=$cm->id\"  TITLE=\"$cm->modname\">" .
@@ -3682,17 +3682,17 @@ function block_fn_marking_view_journal_submissions($journal, $students, $cm, $co
             $t->data[] = new html_table_row(array($cell));
 
             $submittedicon = '<img width="16" height="16" border="0" alt="Journal" src="'.
-                $OUTPUT->pix_url('text', 'block_fn_marking').'" valign="absmiddle"> ';
+                $OUTPUT->image_url('text', 'block_fn_marking').'" valign="absmiddle"> ';
             $markedicon = '<img width="16" height="16" border="0" alt="Journal" src="'.
-                $OUTPUT->pix_url('completed', 'block_fn_marking').'" valign="absmiddle"> ';
+                $OUTPUT->image_url('completed', 'block_fn_marking').'" valign="absmiddle"> ';
             $savedicon = '<img width="16" height="16" border="0" alt="Journal" src="'.
-                $OUTPUT->pix_url('saved', 'block_fn_marking').'" valign="absmiddle"> ';
+                $OUTPUT->image_url('saved', 'block_fn_marking').'" valign="absmiddle"> ';
             if ($gradeitem->gradepass > 0) {
                 $markediconincomplete = '<img width="16" height="16" border="0" alt="Journal" src="'.
-                    $OUTPUT->pix_url('incomplete', 'block_fn_marking').'" valign="absmiddle"> ';
+                    $OUTPUT->image_url('incomplete', 'block_fn_marking').'" valign="absmiddle"> ';
             } else {
                 $markediconincomplete = '<img width="16" height="16" border="0" alt="Journal" src="'.
-                    $OUTPUT->pix_url('graded', 'block_fn_marking').'" valign="absmiddle"> ';
+                    $OUTPUT->image_url('graded', 'block_fn_marking').'" valign="absmiddle"> ';
             }
 
             $lastsubmissionclass = '';
@@ -3740,7 +3740,7 @@ function block_fn_marking_view_journal_submissions($journal, $students, $cm, $co
 
             if ($journal->grade == 0) {
                 $cell1 = new html_table_cell('<img width="16" height="16" border="0" alt="Journal" src="'.
-                    $OUTPUT->pix_url('graded', 'block_fn_marking').'" valign="absmiddle"> Marked');
+                    $OUTPUT->image_url('graded', 'block_fn_marking').'" valign="absmiddle"> Marked');
             } else {
                 $cell1 = new html_table_cell(((($gradeitem->gradepass > 0)
                         && ($item->rating >= $gradeitem->gradepass)) ? $markedicon : $markediconincomplete) . 'Marked');
diff --git a/progress_report.php b/progress_report.php
index ae56fd1..6f74879 100644
--- a/progress_report.php
+++ b/progress_report.php
@@ -191,7 +191,7 @@
 
                             $image = "<A target='_blank' HREF=\"$CFG->wwwroot/mod/$mod->modname/view.php?id=$mod->id\"
                                 TITLE=\"$instance->name\"><IMG BORDER=0 VALIGN=absmiddle
-                                SRC=\"".$OUTPUT->pix_url('icon', $mod->modname)."\"
+                                SRC=\"".$OUTPUT->image_url('icon', $mod->modname)."\"
                                 HEIGHT=16 WIDTH=16 ALT=\"$mod->modfullname\"></A>";
 
 
@@ -340,7 +340,7 @@
 if ($gradeitem = $DB->get_record('grade_items', array('courseid' => $courseid, 'itemtype' => 'course'))) {
     if ($gradeitem->gradetype == GRADE_TYPE_NONE) {
         $nocorseaveragemsg = '<div class="course-average-warning"><img class="actionicon" width="16" height="16" alt="" src="'.
-            $OUTPUT->pix_url('i/risk_xss', '').'"> '.get_string('nocoursetotal', 'block_fn_mentor').'<div>';
+            $OUTPUT->image_url('i/risk_xss', '').'"> '.get_string('nocoursetotal', 'block_fn_mentor').'<div>';
     }
 }
 
@@ -348,7 +348,7 @@
 block_fn_marking_groups_print_course_menu($course, $CFG->wwwroot.'/blocks/fn_marking/progress_report.php?id='.
     $course->id.'&unsubmitted='.$unsubmitted, false, true);
 echo $viewform;
-echo "<img src=\"" . $OUTPUT->pix_url('i/grades') . "\" class=\"icon\" alt=\"\" />" .
+echo "<img src=\"" . $OUTPUT->image_url('i/grades') . "\" class=\"icon\" alt=\"\" />" .
     '<a href="' . $CFG->wwwroot . '/grade/report/index.php?id=' . $course->id .
     '&navlevel=top">' . get_string('moodlegradebook', 'block_fn_marking') . '</a>';
 echo '</div>';
diff --git a/quiz.submissions.fn.php b/quiz.submissions.fn.php
index 6702cc6..3dd846b 100644
--- a/quiz.submissions.fn.php
+++ b/quiz.submissions.fn.php
@@ -147,7 +147,7 @@
             } else {
                 $columnicon = ($qdir == "ASC") ? "sort_asc" : "sort_desc";
             }
-            $columnicon = "<img class='iconsort' src=\"" . $OUTPUT->pix_url('t/' . $columnicon) . "\" alt=\"\" />";
+            $columnicon = "<img class='iconsort' src=\"" . $OUTPUT->image_url('t/' . $columnicon) . "\" alt=\"\" />";
 
         }
         if (($column == 'userpicture') || ($column == 'edit')) {
@@ -250,7 +250,7 @@
                     $tablerow->attempt . '&amp;slot=' .
                     $quizslot->slot . '" title="Review response">
                                 <span class="que">
-                                    <img src="' . $OUTPUT->pix_url('i/grade_incorrect', 'core') .
+                                    <img src="' . $OUTPUT->image_url('i/grade_incorrect', 'core') .
                                     '" title="Incorrect" alt="Incorrect" class="icon fn-icon">
                                     <span class="incorrect">' . $questionstepgrade . '</span>
                                 </span>
@@ -260,7 +260,7 @@
                     $tablerow->attempt . '&amp;slot=' .
                     $quizslot->slot . '" title="Review response">
                                 <span class="que">
-                                    <img src="' . $OUTPUT->pix_url('i/grade_correct', 'core') .
+                                    <img src="' . $OUTPUT->image_url('i/grade_correct', 'core') .
                                     '" title="Incorrect" alt="Incorrect" class="icon fn-icon">
                                     <span class="correct">' . $questionstepgrade . '</span>
                                 </span>
@@ -269,7 +269,7 @@
                 $cell = new html_table_cell('<a target="_blank" href="' . $CFG->wwwroot . '/mod/quiz/reviewquestion.php?attempt=' .
                     $tablerow->attempt . '&amp;slot=' . $quizslot->slot . '" title="Review response">
                                     <span class="que">
-                                        <img src="' . $OUTPUT->pix_url('i/edit', 'core') .
+                                        <img src="' . $OUTPUT->image_url('i/edit', 'core') .
                                         '" title="Edit" alt="Editt" class="icon fn-icon">
                                     </span></a>');
                 $cell->attributes = array('class' => 'fn-highlighted');
@@ -278,7 +278,7 @@
                 $cellarray[] = '<a href="' . $CFG->wwwroot . '/mod/quiz/reviewquestion.php?attempt=' .
                     $tablerow->attempt . '&amp;slot=' . $quizslot->slot . '" title="Review response">
                                     <span class="que">
-                                        <img src="' . $OUTPUT->pix_url('i/grade_partiallycorrect', 'core') .
+                                        <img src="' . $OUTPUT->image_url('i/grade_partiallycorrect', 'core') .
                                         '" title="Partially correct" alt="Partially correct" class="icon fn-icon">
                                         <span class="partiallycorrect">' . $questionstepgrade . '</span>
                                     </span></a>';
@@ -315,11 +315,11 @@
     $o .= '<div class="quiz-top-menu"><div class="qdefault-view">';
 
     $o .= '<a href="' . $CFG->wwwroot . '/mod/quiz/report.php?id=' . $cm->id .
-        '&mode=overview"><img src="' . $OUTPUT->pix_url('popup', 'scorm') . '"> '.
+        '&mode=overview"><img src="' . $OUTPUT->image_url('popup', 'scorm') . '"> '.
         get_string('moodledefaultview', 'block_fn_marking').'</a>';
 
     $o .= '&nbsp;&nbsp;&nbsp;<a href="' . $CFG->wwwroot . '/mod/quiz/report.php?id=' . $cm->id .
-        '&mode=grading"><img src="' . $OUTPUT->pix_url('popup', 'scorm') . '"> '.
+        '&mode=grading"><img src="' . $OUTPUT->image_url('popup', 'scorm') . '"> '.
         get_string('manualgrading', 'block_fn_marking').'</a>';
 
     $o .= '</div><div class="qall-participants">';
@@ -332,7 +332,7 @@
     }
     $o .= '</div></div>';
 
-    $o .= '<div class="fn_quiz_header"><img src="' . $OUTPUT->pix_url('icon', 'quiz') . '">' . $quiz->name . '</div>';
+    $o .= '<div class="fn_quiz_header"><img src="' . $OUTPUT->image_url('icon', 'quiz') . '">' . $quiz->name . '</div>';
 
     $qpagingparams = array(
         'courseid' => $courseid,
@@ -399,7 +399,7 @@
     if (count($students) > 0) {
 
         $image = "<a href=\"$CFG->wwwroot/mod/$cm->modname/view.php?id=$cm->id\"  TITLE=\"$cm->modname\">
-            <img border=0 valign=absmiddle src=\"".$OUTPUT->pix_url('icon', 'quiz')."\" " .
+            <img border=0 valign=absmiddle src=\"".$OUTPUT->image_url('icon', 'quiz')."\" " .
             "height=16 width=16 ALT=\"$cm->modname\"></a>";
 
         $o .= '<div class="unsubmitted_header">' . $image .
diff --git a/version.php b/version.php
index 867bf70..0677fba 100644
--- a/version.php
+++ b/version.php
@@ -23,8 +23,8 @@
  * @developer  Michael Gardener <mgardener@cissq.com>
  */
 
-$plugin->version  = 2017051000;
+$plugin->version  = 2017051200;
 $plugin->requires = 2014051200;
 $plugin->maturity = MATURITY_STABLE;
 $plugin->component = 'block_fn_marking';
-$plugin->release = '3.1.8';
+$plugin->release = '3.1.9';