Add custom css background

judge/forms.py

@@ -80,6 +80,7 @@ class ProfileForm(ModelForm):
             "ace_theme",
             "user_script",
             "profile_image",
+            "css_background",
         ]
         widgets = {
             "user_script": AceWidget(theme="github"),
@@ -87,6 +88,7 @@ class ProfileForm(ModelForm):
             "language": Select2Widget(attrs={"style": "width:200px"}),
             "ace_theme": Select2Widget(attrs={"style": "width:200px"}),
             "profile_image": ImageWidget,
+            "css_background": forms.TextInput(),
         }
 
         has_math_config = bool(settings.MATHOID_URL)

judge/migrations/0168_css_background.py

@@ -0,0 +1,24 @@
+# Generated by Django 3.2.18 on 2023-09-02 00:30
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("judge", "0167_ultimate_contest_format"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="profile",
+            name="css_background",
+            field=models.TextField(
+                blank=True,
+                help_text='CSS custom background properties: url("image_url"), color, etc',
+                max_length=300,
+                null=True,
+                verbose_name="Custom background",
+            ),
+        ),
+    ]

judge/models/profile.py

@@ -246,6 +246,13 @@ class Profile(models.Model):
     )
     profile_image = models.ImageField(upload_to=profile_image_path, null=True)
     email_change_pending = models.EmailField(blank=True, null=True)
+    css_background = models.TextField(
+        verbose_name=_("Custom background"),
+        null=True,
+        blank=True,
+        help_text=_('CSS custom background properties: url("image_url"), color, etc'),
+        max_length=300,
+    )
 
     @cached_property
     def organization(self):