From ad01710ce6ea962609b9f497d99ee9d3fced6599 Mon Sep 17 00:00:00 2001
From: renothing <261274+renothing@users.noreply.github.com>
Date: Mon, 5 Jun 2023 11:01:12 +0800
Subject: [PATCH] Fix incorrect background dynamic property in captcha library

---
 libs/Captcha/CaptchaBuilder.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/Captcha/CaptchaBuilder.php b/libs/Captcha/CaptchaBuilder.php
index bbd8602eb..356da5aa0 100644
--- a/libs/Captcha/CaptchaBuilder.php
+++ b/libs/Captcha/CaptchaBuilder.php
@@ -427,7 +427,7 @@ class CaptchaBuilder implements CaptchaBuilderInterface
                 $color = $this->backgroundColor;
                 $bg = imagecolorallocate($image, $color[0], $color[1], $color[2]);
             }
-            $this->background = $bg;
+            $this->backgroundColor = $bg;
             imagefill($image, 0, 0, $bg);
         } else {
             // use a random background image