Update

app/Admin/Controllers/OfflineOrderController.php

@@ -72,13 +72,14 @@ class OfflineOrderController extends AdminController
         });
         $grid->column('items')->display(function ($items) {
             return $items->map(function ($item) {
+                $color = $item->productCategory?->color ?? '#586cb1';
                 $category = $item->productCategory?->name;
 
                 if ($discount = $item->getDiscount()) {
                     $category .= " {$discount}折";
                 }
 
-                return '<span class="label bg-primary d-inline-block mb-25 mr-25">'.$category.'</span>';
+                return "<span class=\"label text-md d-inline-block text- mb-25 mr-25 p-50\" style=\"background-color:{$color}\">{$category}</span>";
             })->join('');
         });
         $grid->column('products_total_amount')->display(fn($v) => bcdiv($v, 100, 2))->prepend('￥');

app/Admin/Controllers/OfflineProductCategoryController.php

@@ -42,6 +42,7 @@ class OfflineProductCategoryController extends AdminController
                 ->else(function (Column $column) {
                     $column->bool();
                 });
+            $grid->column('color')->display(fn ($v) => $v ? "<span class=\"label\" style=\"background-color:{$v}\">{$v}</span>" : '');
             $grid->column('sort')->sortable();
             $grid->column('created_at');
 
@@ -72,6 +73,8 @@ class OfflineProductCategoryController extends AdminController
                 ->setLabelClass(['asterisk'])
                 ->attribute('required', true);
 
+            $form->color('color');
+
             $form->switch('enabled')
                 ->default(true);
 

app/Models/OfflineProductCategory.php

@@ -21,7 +21,7 @@ class OfflineProductCategory extends Model
     ];
 
     protected $fillable = [
-        'name', 'enabled', 'sort',
+        'name', 'enabled', 'color', 'sort',
     ];
 
     public function scopeEnabled(Builder $builder)

database/migrations/2023_11_12_212000_add_color_to_offline_product_categories_table.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class AddColorToOfflineProductCategoriesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('offline_product_categories', function (Blueprint $table) {
+            $table->string('color')->nullable();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('offline_product_categories', function (Blueprint $table) {
+            $table->dropColumn(['color']);
+        });
+    }
+}

resources/lang/zh_CN/offline-product-category.php

@@ -8,6 +8,7 @@ return [
     'fields' => [
         'name' => '名称',
         'enabled' => '启用',
+        'color' => '颜色',
         'sort' => '排序',
     ],
     'options' => [