Add migration file.

admin_interface/migrations/0021_file_extension_validator.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.1.6 on 2021-04-26 01:32
+
+import django.core.validators
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('admin_interface', '0020_module_selected_colors'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='theme',
+            name='favicon',
+            field=models.FileField(blank=True, help_text='(.ico|.png|.gif - 16x16|32x32 px)', upload_to='admin-interface/favicon/', validators=[django.core.validators.FileExtensionValidator(allowed_extensions=['gif', 'ico', 'jpg', 'jpeg', 'png', 'svg'])], verbose_name='favicon'),
+        ),
+        migrations.AlterField(
+            model_name='theme',
+            name='logo',
+            field=models.FileField(blank=True, help_text='Leave blank to use the default Django logo', upload_to='admin-interface/logo/', validators=[django.core.validators.FileExtensionValidator(allowed_extensions=['gif', 'jpg', 'jpeg', 'png', 'svg'])], verbose_name='logo'),
+        ),
+    ]