diff --git a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/FavouritesFragment.kt b/DBTApp/app/src/main/java/de/cdaut/dbt/activities/FavouritesFragment.kt
deleted file mode 100644
index 8d86b3a..0000000
--- a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/FavouritesFragment.kt
+++ /dev/null
@@ -1,60 +0,0 @@
-package de.cdaut.dbt.activities
-
-import android.os.Bundle
-import androidx.fragment.app.Fragment
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import de.cdaut.dbt.R
-
-// TODO: Rename parameter arguments, choose names that match
-// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
-private const val ARG_PARAM1 = "param1"
-private const val ARG_PARAM2 = "param2"
-
-/**
- * A simple [Fragment] subclass.
- * Use the [FavouritesFragment.newInstance] factory method to
- * create an instance of this fragment.
- */
-class FavouritesFragment : Fragment() {
-    // TODO: Rename and change types of parameters
-    private var param1: String? = null
-    private var param2: String? = null
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        arguments?.let {
-            param1 = it.getString(ARG_PARAM1)
-            param2 = it.getString(ARG_PARAM2)
-        }
-    }
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_favourites, container, false)
-    }
-
-    companion object {
-        /**
-         * Use this factory method to create a new instance of
-         * this fragment using the provided parameters.
-         *
-         * @param param1 Parameter 1.
-         * @param param2 Parameter 2.
-         * @return A new instance of fragment FavouritesFragment.
-         */
-        // TODO: Rename and change types and number of parameters
-        @JvmStatic
-        fun newInstance(param1: String, param2: String) =
-            FavouritesFragment().apply {
-                arguments = Bundle().apply {
-                    putString(ARG_PARAM1, param1)
-                    putString(ARG_PARAM2, param2)
-                }
-            }
-    }
-}
\ No newline at end of file
diff --git a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/HomeActivity.kt b/DBTApp/app/src/main/java/de/cdaut/dbt/activities/HomeActivity.kt
index 12a8eba..461008c 100644
--- a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/HomeActivity.kt
+++ b/DBTApp/app/src/main/java/de/cdaut/dbt/activities/HomeActivity.kt
@@ -1,65 +1,23 @@
 package de.cdaut.dbt.activities
 
 import android.os.Bundle
-import android.view.MenuItem
+import com.google.android.material.snackbar.Snackbar
 import androidx.appcompat.app.AppCompatActivity
-import com.google.android.material.bottomnavigation.BottomNavigationView
-import com.google.android.material.navigation.NavigationBarView
+import androidx.navigation.findNavController
+import androidx.navigation.ui.AppBarConfiguration
+import androidx.navigation.ui.navigateUp
+import androidx.navigation.ui.setupActionBarWithNavController
 import de.cdaut.dbt.R
 import de.cdaut.dbt.databinding.ActivityHomeBinding
 
-
 class HomeActivity : AppCompatActivity() {
 
     private lateinit var binding: ActivityHomeBinding
 
-
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
         binding = ActivityHomeBinding.inflate(layoutInflater)
         setContentView(binding.root)
-
-        val bottomNav = findViewById<BottomNavigationView>(R.id.bottom_navigation)
-        bottomNav.setSelectedItemId(R.id.home)
-
-        bottomNav.setOnItemSelectedListener { selectedItem ->
-            when (selectedItem.itemId){
-                R.id.home -> {
-                    supportFragmentManager.beginTransaction()
-                        .replace(R.id.fragment_container, HomeFragment()).commit()
-                    true
-                }
-                R.id.favs -> {
-                    supportFragmentManager.beginTransaction()
-                        .replace(R.id.fragment_container, FavouritesFragment()).commit()
-                    true
-                }
-                R.id.skilllist -> {
-                    supportFragmentManager.beginTransaction()
-                        .replace(R.id.fragment_container, SkillListFragment()).commit()
-                    true
-                }
-                R.id.skills_chains -> {
-                    supportFragmentManager.beginTransaction()
-                        .replace(R.id.fragment_container, SkillsChainsFragment()).commit()
-                    true
-                }
-                R.id.tracking -> {
-                    supportFragmentManager.beginTransaction()
-                        .replace(R.id.fragment_container, TrackingFragment()).commit()
-                    true
-                }
-                else -> false
-            }
-        }
-
-        supportFragmentManager.beginTransaction()
-            .replace(R.id.fragment_container, HomeFragment()).commit()
-
     }
-
-
-}
-
-
+}
\ No newline at end of file
diff --git a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/SkillListFragment.kt b/DBTApp/app/src/main/java/de/cdaut/dbt/activities/SkillListFragment.kt
deleted file mode 100644
index c06649b..0000000
--- a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/SkillListFragment.kt
+++ /dev/null
@@ -1,60 +0,0 @@
-package de.cdaut.dbt.activities
-
-import android.os.Bundle
-import androidx.fragment.app.Fragment
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import de.cdaut.dbt.R
-
-// TODO: Rename parameter arguments, choose names that match
-// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
-private const val ARG_PARAM1 = "param1"
-private const val ARG_PARAM2 = "param2"
-
-/**
- * A simple [Fragment] subclass.
- * Use the [SkillListFragment.newInstance] factory method to
- * create an instance of this fragment.
- */
-class SkillListFragment : Fragment() {
-    // TODO: Rename and change types of parameters
-    private var param1: String? = null
-    private var param2: String? = null
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        arguments?.let {
-            param1 = it.getString(ARG_PARAM1)
-            param2 = it.getString(ARG_PARAM2)
-        }
-    }
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_skill_list, container, false)
-    }
-
-    companion object {
-        /**
-         * Use this factory method to create a new instance of
-         * this fragment using the provided parameters.
-         *
-         * @param param1 Parameter 1.
-         * @param param2 Parameter 2.
-         * @return A new instance of fragment SkillListFragment.
-         */
-        // TODO: Rename and change types and number of parameters
-        @JvmStatic
-        fun newInstance(param1: String, param2: String) =
-            SkillListFragment().apply {
-                arguments = Bundle().apply {
-                    putString(ARG_PARAM1, param1)
-                    putString(ARG_PARAM2, param2)
-                }
-            }
-    }
-}
\ No newline at end of file
diff --git a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/SkillsChainsFragment.kt b/DBTApp/app/src/main/java/de/cdaut/dbt/activities/SkillsChainsFragment.kt
deleted file mode 100644
index 27f32af..0000000
--- a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/SkillsChainsFragment.kt
+++ /dev/null
@@ -1,60 +0,0 @@
-package de.cdaut.dbt.activities
-
-import android.os.Bundle
-import androidx.fragment.app.Fragment
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import de.cdaut.dbt.R
-
-// TODO: Rename parameter arguments, choose names that match
-// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
-private const val ARG_PARAM1 = "param1"
-private const val ARG_PARAM2 = "param2"
-
-/**
- * A simple [Fragment] subclass.
- * Use the [SkillsChainsFragment.newInstance] factory method to
- * create an instance of this fragment.
- */
-class SkillsChainsFragment : Fragment() {
-    // TODO: Rename and change types of parameters
-    private var param1: String? = null
-    private var param2: String? = null
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        arguments?.let {
-            param1 = it.getString(ARG_PARAM1)
-            param2 = it.getString(ARG_PARAM2)
-        }
-    }
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_skills_chains, container, false)
-    }
-
-    companion object {
-        /**
-         * Use this factory method to create a new instance of
-         * this fragment using the provided parameters.
-         *
-         * @param param1 Parameter 1.
-         * @param param2 Parameter 2.
-         * @return A new instance of fragment SkillsChainsFragment.
-         */
-        // TODO: Rename and change types and number of parameters
-        @JvmStatic
-        fun newInstance(param1: String, param2: String) =
-            SkillsChainsFragment().apply {
-                arguments = Bundle().apply {
-                    putString(ARG_PARAM1, param1)
-                    putString(ARG_PARAM2, param2)
-                }
-            }
-    }
-}
\ No newline at end of file
diff --git a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/TrackingFragment.kt b/DBTApp/app/src/main/java/de/cdaut/dbt/activities/TrackingFragment.kt
deleted file mode 100644
index 2dd113b..0000000
--- a/DBTApp/app/src/main/java/de/cdaut/dbt/activities/TrackingFragment.kt
+++ /dev/null
@@ -1,60 +0,0 @@
-package de.cdaut.dbt.activities
-
-import android.os.Bundle
-import androidx.fragment.app.Fragment
-import android.view.LayoutInflater
-import android.view.View
-import android.view.ViewGroup
-import de.cdaut.dbt.R
-
-// TODO: Rename parameter arguments, choose names that match
-// the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
-private const val ARG_PARAM1 = "param1"
-private const val ARG_PARAM2 = "param2"
-
-/**
- * A simple [Fragment] subclass.
- * Use the [TrackingFragment.newInstance] factory method to
- * create an instance of this fragment.
- */
-class TrackingFragment : Fragment() {
-    // TODO: Rename and change types of parameters
-    private var param1: String? = null
-    private var param2: String? = null
-
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        arguments?.let {
-            param1 = it.getString(ARG_PARAM1)
-            param2 = it.getString(ARG_PARAM2)
-        }
-    }
-
-    override fun onCreateView(
-        inflater: LayoutInflater, container: ViewGroup?,
-        savedInstanceState: Bundle?
-    ): View? {
-        // Inflate the layout for this fragment
-        return inflater.inflate(R.layout.fragment_tracking, container, false)
-    }
-
-    companion object {
-        /**
-         * Use this factory method to create a new instance of
-         * this fragment using the provided parameters.
-         *
-         * @param param1 Parameter 1.
-         * @param param2 Parameter 2.
-         * @return A new instance of fragment TrackingFragment.
-         */
-        // TODO: Rename and change types and number of parameters
-        @JvmStatic
-        fun newInstance(param1: String, param2: String) =
-            TrackingFragment().apply {
-                arguments = Bundle().apply {
-                    putString(ARG_PARAM1, param1)
-                    putString(ARG_PARAM2, param2)
-                }
-            }
-    }
-}
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/layout/activity_home.xml b/DBTApp/app/src/main/res/layout/activity_home.xml
index 9619299..3c8a0a8 100644
--- a/DBTApp/app/src/main/res/layout/activity_home.xml
+++ b/DBTApp/app/src/main/res/layout/activity_home.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.coordinatorlayout.widget.CoordinatorLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -7,6 +8,6 @@
     android:fitsSystemWindows="true"
     tools:context=".activities.HomeActivity">
 
-    <include layout="@layout/content_home" />
+    <include layout="@layout/content_home"/>
 
-</androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
+  </androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/layout/content_home.xml b/DBTApp/app/src/main/res/layout/content_home.xml
index 7d6c917..24ef6f2 100644
--- a/DBTApp/app/src/main/res/layout/content_home.xml
+++ b/DBTApp/app/src/main/res/layout/content_home.xml
@@ -7,7 +7,7 @@
     app:layout_behavior="@string/appbar_scrolling_view_behavior">
 
     <androidx.fragment.app.FragmentContainerView
-        android:id="@+id/fragment_container"
+        android:id="@+id/nav_host_fragment_content_home"
         android:name="androidx.navigation.fragment.NavHostFragment"
         android:layout_width="0dp"
         android:layout_height="0dp"
@@ -16,18 +16,5 @@
         app:layout_constraintTop_toTopOf="parent"
         app:layout_constraintBottom_toBottomOf="parent"
         app:defaultNavHost="true"
-        app:navGraph="@navigation/nav_graph"
-        android:layout_above="@id/bottom_navigation"/>
-
-    <com.google.android.material.bottomnavigation.BottomNavigationView
-        android:id="@+id/bottom_navigation"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:layout_alignParentBottom="true"
-        android:layout_gravity="bottom"
-        android:background="@android:color/background_dark"
-        app:itemIconTint="@android:color/white"
-        app:itemTextColor="@android:color/white"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:menu="@menu/bottom_navbar" />
+        app:navGraph="@navigation/nav_graph" />
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/layout/fragment_favourites.xml b/DBTApp/app/src/main/res/layout/fragment_favourites.xml
deleted file mode 100644
index 812e2f1..0000000
--- a/DBTApp/app/src/main/res/layout/fragment_favourites.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/constraintLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".activities.FavouritesFragment">
-
-
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/favourites"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/layout/fragment_home.xml b/DBTApp/app/src/main/res/layout/fragment_home.xml
index 329f50a..5988fc7 100644
--- a/DBTApp/app/src/main/res/layout/fragment_home.xml
+++ b/DBTApp/app/src/main/res/layout/fragment_home.xml
@@ -1,20 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/constraintLayout"
     android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".activities.FavouritesFragment">
+    android:layout_height="match_parent">
 
+    <FrameLayout
+        android:id="@+id/fragment_container"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_above="@id/bottom_navigation" />
 
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
+    <com.google.android.material.bottomnavigation.BottomNavigationView
+        android:id="@+id/bottom_navigation"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:text="@string/home"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
+        android:layout_alignParentBottom="true"
+        android:layout_gravity="bottom"
+        android:background="@android:color/background_dark"
+        app:itemIconTint="@android:color/white"
+        app:itemTextColor="@android:color/white"
+        app:menu="@menu/bottom_navbar" />
+</RelativeLayout>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/layout/fragment_skill_list.xml b/DBTApp/app/src/main/res/layout/fragment_skill_list.xml
deleted file mode 100644
index f19e3e0..0000000
--- a/DBTApp/app/src/main/res/layout/fragment_skill_list.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/constraintLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".activities.FavouritesFragment">
-
-
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/skill_list"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/layout/fragment_skills_chains.xml b/DBTApp/app/src/main/res/layout/fragment_skills_chains.xml
deleted file mode 100644
index 828eed2..0000000
--- a/DBTApp/app/src/main/res/layout/fragment_skills_chains.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/constraintLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".activities.FavouritesFragment">
-
-
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/skills_chain"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/layout/fragment_tracking.xml b/DBTApp/app/src/main/res/layout/fragment_tracking.xml
deleted file mode 100644
index f1898ef..0000000
--- a/DBTApp/app/src/main/res/layout/fragment_tracking.xml
+++ /dev/null
@@ -1,20 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
-    xmlns:tools="http://schemas.android.com/tools"
-    android:id="@+id/constraintLayout"
-    android:layout_width="match_parent"
-    android:layout_height="match_parent"
-    tools:context=".activities.FavouritesFragment">
-
-
-    <TextView
-        android:id="@+id/textView"
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="@string/tracking"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/values-night/themes.xml b/DBTApp/app/src/main/res/values-night/themes.xml
index f65506a..01f32eb 100644
--- a/DBTApp/app/src/main/res/values-night/themes.xml
+++ b/DBTApp/app/src/main/res/values-night/themes.xml
@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.DBTApp" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+    <style name="Theme.DBTApp" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/purple_200</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>
diff --git a/DBTApp/app/src/main/res/values/strings.xml b/DBTApp/app/src/main/res/values/strings.xml
index 150bb69..b3d1612 100644
--- a/DBTApp/app/src/main/res/values/strings.xml
+++ b/DBTApp/app/src/main/res/values/strings.xml
@@ -8,6 +8,4 @@
     <string name="favourites">Favourites</string>
     <string name="home">Home\n</string>
     <string name="skills_chain">Skills chains\n</string>
-    <!-- TODO: Remove or change this placeholder text -->
-    <string name="hello_blank_fragment">Hello blank fragment</string>
 </resources>
\ No newline at end of file
diff --git a/DBTApp/app/src/main/res/values/themes.xml b/DBTApp/app/src/main/res/values/themes.xml
index 8ff576c..3566fcf 100644
--- a/DBTApp/app/src/main/res/values/themes.xml
+++ b/DBTApp/app/src/main/res/values/themes.xml
@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.DBTApp" parent="Theme.MaterialComponents.DayNight.NoActionBar">
+    <style name="Theme.DBTApp" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/purple_500</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>