diff --git a/Admin/Install/db.json b/Admin/Install/db.json
index 27ea992..081bf82 100755
--- a/Admin/Install/db.json
+++ b/Admin/Install/db.json
@@ -138,6 +138,12 @@
                 "default": null,
                 "null": true
             },
+            "kanban_card_style": {
+                "name": "kanban_card_style",
+                "type": "TEXT",
+                "null": true,
+                "default": null
+            },
             "kanban_card_type": {
                 "name": "kanban_card_type",
                 "type": "TINYINT",
diff --git a/Models/KanbanCard.php b/Models/KanbanCard.php
index 0f29af6..d20bee0 100755
--- a/Models/KanbanCard.php
+++ b/Models/KanbanCard.php
@@ -52,6 +52,8 @@ class KanbanCard implements \JsonSerializable
 
     public string $color = '';
 
+    public string $style = '';
+
     /**
      * Description.
      *
diff --git a/Models/KanbanCardMapper.php b/Models/KanbanCardMapper.php
index 74f60c8..140597e 100755
--- a/Models/KanbanCardMapper.php
+++ b/Models/KanbanCardMapper.php
@@ -40,6 +40,7 @@ final class KanbanCardMapper extends DataMapperAbstract
         'kanban_card_name'           => ['name' => 'kanban_card_name',        'type' => 'string',   'internal' => 'name'],
         'kanban_card_description'    => ['name' => 'kanban_card_description', 'type' => 'string',   'internal' => 'description'],
         'kanban_card_descriptionraw' => ['name' => 'kanban_card_descriptionraw', 'type' => 'string',   'internal' => 'descriptionRaw'],
+        'kanban_card_style'          => ['name' => 'kanban_card_style',       'type' => 'string',   'internal' => 'style'],
         'kanban_card_type'           => ['name' => 'kanban_card_type',        'type' => 'int',      'internal' => 'type'],
         'kanban_card_status'         => ['name' => 'kanban_card_status',      'type' => 'int',      'internal' => 'status'],
         'kanban_card_order'          => ['name' => 'kanban_card_order',       'type' => 'int',      'internal' => 'order'],
diff --git a/composer.json b/composer.json
index 7ad134b..7cf5769 100755
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     "require-dev": {
         "phpunit/phpunit": ">=9.4",
         "friendsofphp/php-cs-fixer": ">=3.0",
-        "squizlabs/php_codesniffer": ">=3.5",
+        "squizlabs/php_codesniffer": ">=3.6",
         "phpmd/phpmd": ">=2.9",
         "phpstan/phpstan": ">=0.12.58",
         "phan/phan": ">=3.2.6"