diff --git a/app/Filament/Resources/System/ExamResource.php b/app/Filament/Resources/System/ExamResource.php
index 05b29f86..f0f542db 100644
--- a/app/Filament/Resources/System/ExamResource.php
+++ b/app/Filament/Resources/System/ExamResource.php
@@ -104,6 +104,10 @@ public static function form(Form $form): Form
                         ->inline()
                         ->required()
                         ->columnSpan(['sm' => 2]),
+                    Forms\Components\TextInput::make('background_color')
+                        ->required()
+                        ->label(__('exam.background_color'))
+                        ->columnSpan(['sm' => 2]),
                     Forms\Components\TextInput::make('priority')
                         ->columnSpan(['sm' => 2])
                         ->integer()
diff --git a/app/Models/Exam.php b/app/Models/Exam.php
index 04e04898..f00dcd71 100644
--- a/app/Models/Exam.php
+++ b/app/Models/Exam.php
@@ -11,7 +11,7 @@ class Exam extends NexusModel
 {
     protected $fillable = [
         'name', 'description', 'begin', 'end', 'duration', 'status', 'is_discovered', 'filters', 'indexes', 'priority',
-        'recurring', 'type', 'success_reward_bonus', 'fail_deduct_bonus', 'max_user_count'
+        'recurring', 'type', 'success_reward_bonus', 'fail_deduct_bonus', 'max_user_count', 'background_color',
     ];
 
     public $timestamps = true;
diff --git a/database/migrations/2024_08_23_040843_add_background_color_to_exams_table.php b/database/migrations/2024_08_23_040843_add_background_color_to_exams_table.php
new file mode 100644
index 00000000..7198cbef
--- /dev/null
+++ b/database/migrations/2024_08_23_040843_add_background_color_to_exams_table.php
@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('exams', function (Blueprint $table) {
+            $table->string("background_color")->default("blue");
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('exams', function (Blueprint $table) {
+            $table->dropColumn("background_color");
+        });
+    }
+};
diff --git a/include/functions.php b/include/functions.php
index 54241436..0a635a13 100644
--- a/include/functions.php
+++ b/include/functions.php
@@ -2899,9 +2899,9 @@ function stdhead($title = "", $msgalert = true, $script = "", $place = "")
 
 	//show the exam info
     $exam = new \Nexus\Exam\Exam();
-    $examHtml = $exam->render($CURUSER['id']);
-    if (!empty($examHtml)) {
-        msgalert("messages.php", $examHtml, "blue");
+    $currentExam = $exam->getCurrent($CURUSER['id']);
+    if (!empty($currentExam['html'])) {
+        msgalert("messages.php", $currentExam['html'], $currentExam['exam']->background_color ?? 'blue');
     }
 }
 		if ($offlinemsg)
diff --git a/nexus/Exam/Exam.php b/nexus/Exam/Exam.php
index d617c224..356df92b 100644
--- a/nexus/Exam/Exam.php
+++ b/nexus/Exam/Exam.php
@@ -7,12 +7,12 @@
 
 class Exam
 {
-    public function render($uid)
+    public function getCurrent($uid): array
     {
         $examRep = new ExamRepository();
         $userExam = $examRep->getUserExamProgress($uid, ExamUser::STATUS_NORMAL);
         if (empty($userExam)) {
-            return '';
+            return ['exam' => null, 'html' => ''];
         }
         /** @var \App\Models\Exam $exam */
         $exam = $userExam->exam;
@@ -34,6 +34,7 @@ public function render($uid)
         if ($exam->description) {
             $row[] = "\n" . $exam->description;
         }
-        return  nl2br(implode("\n", $row));
+        $html =  nl2br(implode("\n", $row));
+        return compact('exam', 'html');
     }
 }
diff --git a/resources/lang/en/exam.php b/resources/lang/en/exam.php
index e4d1895a..2349503f 100644
--- a/resources/lang/en/exam.php
+++ b/resources/lang/en/exam.php
@@ -68,4 +68,5 @@
     'reach_max_user_count' => 'The number of claimed users has reached its maximum',
     'claimed_user_count' => 'Claimed',
     'max_user_count' => 'Max claim user count(0 means unlimited)',
+    'background_color' => 'Info box background color',
 ];
diff --git a/resources/lang/zh_CN/exam.php b/resources/lang/zh_CN/exam.php
index f79b3f68..f4a3b185 100644
--- a/resources/lang/zh_CN/exam.php
+++ b/resources/lang/zh_CN/exam.php
@@ -70,4 +70,5 @@
     'reach_max_user_count' => '认领人数已达上限',
     'claimed_user_count' => '认领人数',
     'max_user_count' => '最多认领人数(0表示无限制)',
+    'background_color' => '信息框背景色',
 ];
diff --git a/resources/lang/zh_TW/exam.php b/resources/lang/zh_TW/exam.php
index 5f439d05..9dc12076 100644
--- a/resources/lang/zh_TW/exam.php
+++ b/resources/lang/zh_TW/exam.php
@@ -68,4 +68,5 @@
     'reach_max_user_count' => '認領人數已達上限',
     'claimed_user_count' => '認領人數',
     'max_user_count' => '最多認領人數(0表示無限製)',
+    'background_color' => '信息框背景色',
 ];