diff --git a/.env b/.env
index f1c566c..95ca49a 100644
--- a/.env
+++ b/.env
@@ -52,6 +52,9 @@ APP_NAME=YGGtracker
 APP_LOCALE=en
 APP_LOCALES=en|cs|eo|fr|ka|de|he|it|lv|pl|pt|ru|es|uk
 
+APP_THEME=default
+APP_THEMES=default
+
 APP_TRACKERS=http://[201:23b4:991a:634d:8359:4521:5576:15b7]:2023/announce|http://[200:1e2f:e608:eb3a:2bf:1e62:87ba:e2f7]/announce|http://[316:c51a:62a3:8b9::5]/announce
 
 APP_PAGE_TITLE_LENGTH_MIN=10
diff --git a/config/packages/twig.yaml b/config/packages/twig.yaml
index 8052606..236f109 100644
--- a/config/packages/twig.yaml
+++ b/config/packages/twig.yaml
@@ -3,6 +3,7 @@ twig:
     globals:
         version: '%app.version%'
         name: '%app.name%'
+        theme: '%app.theme%'
 
 when@test:
     twig:
diff --git a/config/services.yaml b/config/services.yaml
index 71fefcb..68124cf 100644
--- a/config/services.yaml
+++ b/config/services.yaml
@@ -8,6 +8,8 @@ parameters:
     app.name: '%env(APP_NAME)%'
     app.locale: '%env(APP_LOCALE)%'
     app.locales: '%env(APP_LOCALES)%'
+    app.theme: '%env(APP_THEME)%'
+    app.themes: '%env(APP_THEMES)%'
     app.trackers: '%env(APP_TRACKERS)%'
     app.page.title.length.min: '%env(APP_PAGE_TITLE_LENGTH_MIN)%'
     app.page.title.length.max: '%env(APP_PAGE_TITLE_LENGTH_MAX)%'
diff --git a/src/Controller/UserController.php b/src/Controller/UserController.php
index f0e3975..37075f2 100644
--- a/src/Controller/UserController.php
+++ b/src/Controller/UserController.php
@@ -134,6 +134,14 @@ class UserController extends AbstractController
                 );
             }
 
+            // Update theme
+            if (in_array($request->get('theme'), explode('|', $this->getParameter('app.themes'))))
+            {
+                $user->setTheme(
+                    $request->get('theme')
+                );
+            }
+
             // Save changes to DB
             $userService->save($user);
 
@@ -158,13 +166,15 @@ class UserController extends AbstractController
                     'status'    => $user->isStatus(),
                     'locale'    => $user->getLocale(),
                     'locales'   => $user->getLocales(),
+                    'theme'     => $user->getTheme(),
                     'added'     => $user->getAdded(),
                     'identicon' => $userService->identicon(
                         $user->getAddress(),
                         48
                     ),
                 ],
-                'locales' => explode('|', $this->getParameter('app.locales'))
+                'locales' => explode('|', $this->getParameter('app.locales')),
+                'themes'  => explode('|', $this->getParameter('app.themes'))
             ]
         );
     }
diff --git a/src/Entity/User.php b/src/Entity/User.php
index fba0937..493e61c 100644
--- a/src/Entity/User.php
+++ b/src/Entity/User.php
@@ -35,6 +35,9 @@ class User
     #[ORM\Column(type: Types::ARRAY)]
     private array $locales = [];
 
+    #[ORM\Column(length: 255)]
+    private ?string $theme = null;
+
     public function getId(): ?int
     {
         return $this->id;
@@ -130,4 +133,16 @@ class User
 
         return $this;
     }
+
+    public function getTheme(): ?string
+    {
+        return $this->theme;
+    }
+
+    public function setTheme(string $theme): static
+    {
+        $this->theme = $theme;
+
+        return $this;
+    }
 }
diff --git a/src/Service/UserService.php b/src/Service/UserService.php
index ab2981a..e340859 100644
--- a/src/Service/UserService.php
+++ b/src/Service/UserService.php
@@ -47,6 +47,9 @@ class UserService
         $user->setLocales(
             explode('|', $this->parameterBagInterface->get('app.locales'))
         );
+        $user->setTheme(
+            $this->parameterBagInterface->get('app.theme')
+        );
 
         $this->save($user);
 
diff --git a/templates/default/layout.html.twig b/templates/default/layout.html.twig
index 54900da..f91a1c2 100644
--- a/templates/default/layout.html.twig
+++ b/templates/default/layout.html.twig
@@ -4,8 +4,8 @@
         <meta charset="UTF-8" />
         <title>{% block title %}{{ name }}{% endblock %}</title>
         {% block stylesheets %}
-            <link href="{{ asset('asset/default/css/framework.css') }}?{{ version }}" rel="stylesheet" />
-            <link href="{{ asset('asset/default/css/common.css') }}?{{ version }}" rel="stylesheet" />
+            <link href="{{ asset('asset/' ~ theme ~ '/css/framework.css') }}?{{ version }}" rel="stylesheet" />
+            <link href="{{ asset('asset/' ~ theme ~ '/css/common.css') }}?{{ version }}" rel="stylesheet" />
         {% endblock %}
     </head>
     <body>
diff --git a/templates/default/user/profile.html.twig b/templates/default/user/profile.html.twig
index f54c25f..6f2c3e3 100644
--- a/templates/default/user/profile.html.twig
+++ b/templates/default/user/profile.html.twig
@@ -101,6 +101,24 @@
                             {% endfor %}
                         </td>
                     </tr>
+                    <tr>
+                        <td class="padding-t-16-px">{{ 'Theme'|trans }}</td>
+                        <td class="padding-t-16-px">
+                            <select name="theme">
+                                {% for theme in themes %}
+                                    {% if theme == user.theme %}
+                                        <option value="{{ theme }}" selected="selected">
+                                            {{ theme }}
+                                        </option>
+                                    {% else %}
+                                        <option value="{{ theme }}">
+                                            {{ theme }}
+                                        </option>
+                                    {% endif %}
+                                {% endfor %}
+                            </select>
+                        </td>
+                    </tr>
                 </tbody>
             </table>
             <div class="text-right">