diff --git a/src/door_commander/opa.py b/src/door_commander/opa.py
index dcd9598..e01e4ad 100644
--- a/src/door_commander/opa.py
+++ b/src/door_commander/opa.py
@@ -38,24 +38,13 @@ def get_auth_header():
 
 
 def get_allowed_result(path, function, key="allow"):
-    try:
-        if get_data_result(path, function)[key] is True:
-            return True
-        else:
-            return False
-    except:
-        raise Exception("Auth check failed")
-
+    return get_data_result(path, function)[key] is True
 
 def check_allowed(path, function):
-    try:
-        if get_data_result(path, function)["allow"] is True:
-            return
-        else:
-            raise Exception("Unauthorized")  # TODO 401/403
-    except:
-        raise Exception("Auth check failed")
-
+    if get_data_result(path, function)["allow"] is True:
+        return
+    else:
+        raise Exception("Unauthorized")  # TODO 401/403
 
 def get_data_result(path, function):
     """
@@ -84,7 +73,7 @@ def get_data_result(path, function):
         # log.setLevel(logging.DEBUG)
         log.debug("Return authorization result %s", ic.format(path, input, result))
         return result['result']
-    except:
+    except Exception as e:
         raise Exception("Auth check failed")
 
 
diff --git a/src/door_commander/settings.py b/src/door_commander/settings.py
index affbd89..b83509a 100644
--- a/src/door_commander/settings.py
+++ b/src/door_commander/settings.py
@@ -130,7 +130,6 @@ def load_or_create_secret_key() -> str:
     '[::1]',
     'python',
     'sesam.zam.haus',
-    # 'door-commander.betreiberverein.de',
 ]
 
 # ================================================================
@@ -222,7 +221,7 @@ def load_or_create_secret_key() -> str:
 # Authz Microservice
 # ================================================================
 
-OPA_BEARER_TOKEN = os.getenv("OPA_BEARER_TOKEN")
+OPA_BEARER_TOKEN = os.getenv("OPA_BEARER_TOKEN") or ""
 OPA_URL = os.getenv("OPA_URL")
 
 # ================================================================
diff --git a/src/door_commander/urls.py b/src/door_commander/urls.py
index 295e91b..8a552f6 100644
--- a/src/door_commander/urls.py
+++ b/src/door_commander/urls.py
@@ -14,7 +14,6 @@
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from django.conf import settings
-from django.conf.urls import url
 from django.contrib import admin
 from django.urls import path, include
 
@@ -28,8 +27,8 @@
     # path('clientipaddress/', include('cliaentipaddress.urls')),
     # </LEGACY>
     # path('admin/', admin.site.urls),
-    url(
-        r'^accounts/login/$',
+    path(
+        'accounts/login/',
         LoginView.as_view(
             template_name='admin/login.html',
             extra_context={
diff --git a/src/doors/admin.py b/src/doors/admin.py
index 54c89c2..6fa4f36 100644
--- a/src/doors/admin.py
+++ b/src/doors/admin.py
@@ -1,13 +1,26 @@
 from uuid import uuid4
 
 from django.contrib import admin
+from django.forms import ModelForm
+from django.forms.widgets import TextInput
 
-# Register your models here.
 from doors.models import Door
 from doors import door_names_publisher
 
 
+class DoorForm(ModelForm):
+    class Meta:
+        model = Door
+        fields = "__all__"
+        widgets = {
+            "text_color": TextInput(attrs={"type": "color"}),
+            "button_color": TextInput(attrs={"type": "color"}),
+        }
+
+
+@admin.register(Door)
 class DoorAdmin(admin.ModelAdmin):
+    form = DoorForm
     list_display = (Door.mqtt_id.field.name, Door.display_name.field.name)
 
     def get_form(self, request, obj=None, **kwargs):
@@ -19,5 +32,3 @@ def save_model(self, request, obj, form, change):
         super(DoorAdmin, self).save_model(request, obj, form, change)
         door_names_publisher.publish_door_name(obj)
 
-
-admin.site.register(Door, DoorAdmin)
diff --git a/src/doors/migrations/0003_door_button_color_door_order_door_text_color.py b/src/doors/migrations/0003_door_button_color_door_order_door_text_color.py
new file mode 100644
index 0000000..ffcef3a
--- /dev/null
+++ b/src/doors/migrations/0003_door_button_color_door_order_door_text_color.py
@@ -0,0 +1,29 @@
+# Generated by Django 4.2.4 on 2023-08-07 15:07
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('doors', '0002_alter_door_options'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='door',
+            name='button_color',
+            field=models.CharField(help_text='HTML hex color code for button', max_length=7, default='#60b177', null=True),
+        ),
+        migrations.AddField(
+            model_name='door',
+            name='order',
+            field=models.IntegerField(default=0, help_text='Order of appearance for door buttons. Lower is higher up.'),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='door',
+            name='text_color',
+            field=models.CharField(help_text='HTML hex color code for text on button', max_length=7, default='#ffffff', null=True),
+        ),
+    ]
diff --git a/src/doors/models.py b/src/doors/models.py
index 18b2d28..8464563 100644
--- a/src/doors/models.py
+++ b/src/doors/models.py
@@ -14,8 +14,19 @@ class Door(models.Model):
     id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
     mqtt_id = models.CharField(max_length=256, unique=True, db_index=True)
     display_name = models.TextField()
+    order = models.IntegerField(help_text="Order of appearance for door buttons. Lower is higher up.", default=42)
+    text_color = models.CharField(
+        max_length=7,
+        default="#ffffff",
+        null=True,
+        help_text="HTML hex color code for text on button")
+    button_color = models.CharField(
+        max_length=7,
+        default="#60b177",
+        help_text="HTML hex color code for button")
     class Meta:
         permissions = [
             (_PERMISSION_OPEN_DOOR, "Can open any door"),
             (_PERMISSION_LOCATION_OVERRIDE, "Can open doors from anywhere"),
         ]
+        ordering = ('order',)
diff --git a/src/jinja-templates/web_homepage/index.html b/src/jinja-templates/web_homepage/index.html
index 6393247..43b13c2 100644
--- a/src/jinja-templates/web_homepage/index.html
+++ b/src/jinja-templates/web_homepage/index.html
@@ -23,10 +23,6 @@
             -moz-appearance: none;
         }
 
-        .open {
-            background-color: MediumSeaGreen;
-        }
-
         .logout {
             background-color: Tomato;
         }
@@ -56,7 +52,9 @@ <h2>Hallo, {{ request.user.display_name }}!</h2>
             {% if can_open_doors[door] %}
                 <form action="{{ url("open", kwargs=dict(door_id=door.id)) }}" method="post">
                     {{ csrf_input }}
-                    <button type="submit" class="open">{{ door.display_name }} &ouml;ffnen!</button>
+                    <button type="submit" style="color: {{door.text_color}}; background-color: {{door.button_color}}">
+                        {{ door.display_name }} &ouml;ffnen!
+                    </button>
                 </form>
             {% endif %}
         {% endfor %}
diff --git a/src/web_homepage/views.py b/src/web_homepage/views.py
index 813ee2b..9f3b243 100644
--- a/src/web_homepage/views.py
+++ b/src/web_homepage/views.py
@@ -28,6 +28,7 @@
 
 def home(request):
     user_doors = list(door for door in Door.objects.all() if check_can_view_door(request, door))
+    user_doors.sort(key=lambda d: d.order)
     #has_allowed_location, allowed_location_reason = check_has_allowed_location(request)
     doors_status = fetch_status()
     can_open_doors = {door: check_can_open_door(request, door) for door in user_doors}