additional colors under admin control

backend/app/main.py

@@ -65,6 +65,10 @@ def _migrate_add_missing_columns(sync_conn):
         ("station_config", "color_success", sa.String(7), "#4a9e4f"),
         ("station_config", "color_danger", sa.String(7), "#c83030"),
         ("station_config", "color_info", sa.String(7), "#3a8abf"),
+        ("station_config", "color_white", sa.String(7), "#ffffff"),
+        ("station_config", "color_light", sa.String(7), "#f0ebe3"),
+        ("station_config", "color_medium", sa.String(7), "#8a8580"),
+        ("station_config", "color_black", sa.String(7), "#1a1816"),
     ]
 
     # Determine dialect

backend/app/models.py

@@ -120,6 +120,12 @@ class StationConfig(Base):
     color_danger = Column(String(7), nullable=False, default="#c83030")
     color_info = Column(String(7), nullable=False, default="#3a8abf")
 
+    # Neutral colors
+    color_white = Column(String(7), nullable=False, default="#ffffff")
+    color_light = Column(String(7), nullable=False, default="#f0ebe3")
+    color_medium = Column(String(7), nullable=False, default="#8a8580")
+    color_black = Column(String(7), nullable=False, default="#1a1816")
+
 
 class HistoryEntry(Base):
     __tablename__ = "history_entries"

backend/seed.py

@@ -231,6 +231,10 @@ STATION_CONFIG: dict = {
     "color_success": "#4a9e4f",
     "color_danger": "#c83030",
     "color_info": "#3a8abf",
+    "color_white": "#ffffff",
+    "color_light": "#f0ebe3",
+    "color_medium": "#8a8580",
+    "color_black": "#1a1816",
 }
 
 HISTORY_ENTRIES: list[dict] = [