From aeff8af5f525236031ae70fc26e516ed3e709fd4 Mon Sep 17 00:00:00 2001
From: Eduardo Mozart de Oliveira
 <2974895+eduardomozart@users.noreply.github.com>
Date: Mon, 27 May 2024 14:25:53 -0300
Subject: [PATCH] PHP 8 Warning fix on ODT export

---
 helper.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/helper.php b/helper.php
index 6fc2cc5..27bf579 100644
--- a/helper.php
+++ b/helper.php
@@ -666,7 +666,7 @@ function renderODTOpenTable ($renderer, $attr, $style, $attr_string) {
             $css_properties ['display'] = 'printer';
         }
 
-        $background_color = $css_properties ['background-color'];
+        $background_color = $css_properties ['background-color'] ?? null;
         $image = $css_properties ['background-image'] ?? null;
         $margin_top = $css_properties ['margin-top'];
         $margin_right = $css_properties ['margin-right'];