Add gas-pump icon left of title + coloured fuel-type tab icons (Unleaded green, Premium blue, Diesel grey)

FuelBoard/StationsView.swift

@@ -47,7 +47,12 @@ struct StationsView: View {
                 Section("Fuel type") {
                     Picker("Fuel type", selection: $selectedFuel) {
                         ForEach(FuelType.allCases) { fuel in
-                            Text(fuel.displayName).tag(fuel)
+                            HStack(spacing: 4) {
+                                Image(systemName: "fuelpump.fill")
+                                    .foregroundStyle(fuel.tintColor)
+                                Text(fuel.shortName)
+                            }
+                            .tag(fuel)
                         }
                     }
                     .pickerStyle(.segmented)
@@ -180,7 +185,40 @@ struct StationsView: View {
                 // New fetch or filter switch → back to the first page.
                 visibleCount = pageSize
             }
+            .toolbar {
+                ToolbarItem(placement: .principal) {
+                    HStack(spacing: 6) {
+                        Image(systemName: "fuelpump.fill")
+                            .foregroundStyle(selectedFuel.tintColor)
+                        Text("FuelBoard")
+                            .font(.headline)
+                    }
+                }
+            }
             .navigationTitle("FuelBoard")
         }
     }
 }
+
+// MARK: - Fuel-type iconography (app target only — FuelStore.swift is Foundation-only)
+
+extension FuelType {
+    /// Short segment label ("Unleaded" / "Premium" / "Diesel") for the picker.
+    var shortName: String {
+        switch self {
+        case .e10: return "Unleaded"
+        case .e5: return "Premium"
+        case .diesel: return "Diesel"
+        }
+    }
+
+    /// Pump-handle colour convention (UK): green = unleaded, blue = premium,
+    /// dark grey = diesel. Used for the fuel-type tab icons and the title icon.
+    var tintColor: Color {
+        switch self {
+        case .e10: return .green
+        case .e5: return .blue
+        case .diesel: return Color(red: 0.35, green: 0.38, blue: 0.42)
+        }
+    }
+}