From ba2ad4316ed299996b5a53bc0b4e7264422969ae Mon Sep 17 00:00:00 2001
From: Marina Glancy <marina@moodle.com>
Date: Mon, 24 Aug 2015 10:59:30 +0800
Subject: [PATCH] MDL-51184 themes: correctly check $CFG->svgicons

Thanks to Ralf Wiederhold for pointing out the bug
---
 lib/outputlib.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/outputlib.php b/lib/outputlib.php
index 35e2f34a522..87e5c73af2d 100644
--- a/lib/outputlib.php
+++ b/lib/outputlib.php
@@ -1660,11 +1660,11 @@ class theme_config {
         global $CFG;
         if ($this->usesvg === null) {
 
-            if (!isset($CFG->svgicons) || !is_bool($CFG->svgicons)) {
+            if (!isset($CFG->svgicons)) {
                 $this->usesvg = core_useragent::supports_svg();
             } else {
                 // Force them on/off depending upon the setting.
-                $this->usesvg = $CFG->svgicons;
+                $this->usesvg = (bool)$CFG->svgicons;
             }
         }
         return $this->usesvg;