init

app/(tabs)/_layout.tsx

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+import { Ionicons } from '@expo/vector-icons';
+import { Tabs } from 'expo-router';
+import { colors } from '../../src/theme/colors';
+
+export default function TabsLayout() {
+  return (
+    <Tabs
+      screenOptions={{
+        headerStyle: { backgroundColor: colors.bgCard },
+        headerTintColor: colors.text,
+        tabBarStyle: {
+          backgroundColor: colors.bgCard,
+          borderTopColor: colors.border,
+        },
+        tabBarActiveTintColor: colors.accent,
+        tabBarInactiveTintColor: colors.textMuted,
+      }}
+    >
+      <Tabs.Screen
+        name="index"
+        options={{
+          title: 'Dossiers',
+          tabBarIcon: ({ color, size }) => (
+            <Ionicons name="folder-open-outline" size={size} color={color} />
+          ),
+        }}
+      />
+      <Tabs.Screen
+        name="investisseurs"
+        options={{
+          title: 'Investisseurs',
+          tabBarIcon: ({ color, size }) => (
+            <Ionicons name="people-outline" size={size} color={color} />
+          ),
+        }}
+      />
+      <Tabs.Screen
+        name="reglages"
+        options={{
+          title: 'Réglages',
+          tabBarIcon: ({ color, size }) => (
+            <Ionicons name="settings-outline" size={size} color={color} />
+          ),
+        }}
+      />
+    </Tabs>
+  );
+}