diff --git a/Android.mk b/Android.mk
index 5f418ef8d554e3507a9846107b43f7ebc96852bb..93cf05c4a0d19600eca98ce089f17a3dbc863fea 100644
--- a/Android.mk
+++ b/Android.mk
@@ -16,6 +16,8 @@ LOCAL_STATIC_ANDROID_LIBRARIES := \
     androidx.preference_preference \
     androidx.recyclerview_recyclerview \
 
+LOCAL_STATIC_JAVA_LIBRARIES += org.lineageos.platform.sdk
+
 LOCAL_RESOURCE_DIR := \
     $(LOCAL_PATH)/res
 
diff --git a/res/drawable/ic_arrow_back.xml b/res/drawable/ic_arrow_back.xml
new file mode 100644
index 0000000000000000000000000000000000000000..a52d9523e11a5977618946471c95a0ad793f76d1
--- /dev/null
+++ b/res/drawable/ic_arrow_back.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+    <path
+        android:fillColor="@color/theme_accent"
+        android:pathData="M20,11H7.83l5.59,-5.59L12,4l-8,8 8,8 1.41,-1.41L7.83,13H20v-2z" />
+</vector>
diff --git a/res/drawable/ic_foreground.xml b/res/drawable/ic_foreground.xml
index a4badaf3c03da3e6f7dab29e902790ba6c53f1a3..a2fa90ac151b9c66bfe5022f917c8de33fdcbcb1 100644
--- a/res/drawable/ic_foreground.xml
+++ b/res/drawable/ic_foreground.xml
@@ -6,7 +6,7 @@
     <group android:translateX="24.363636"
             android:translateY="24.363636">
         <path
-            android:fillColor="#FAFAFA"
+            android:fillColor="@color/theme_accent"
             android:pathData="M17,1.01L7,1c-1.1,0 -2,0.9 -2,2v18c0,1.1 0.9,2 2,2h10c1.1,0 2,-0.9 2,-2L19,3c0,-1.1 -0.9,-1.99 -2,-1.99zM17,19L7,19L7,5h10v14zM16,13h-3L13,8h-2v5L8,13l4,4 4,-4z"/>
     </group>
 </vector>
diff --git a/res/drawable/ic_menu_refresh.xml b/res/drawable/ic_menu_refresh.xml
index 05a578d55b9571efcd5989a95e5f51e687addd8c..3b47058a39f5f65c3407dc5f4d06353df2aea908 100644
--- a/res/drawable/ic_menu_refresh.xml
+++ b/res/drawable/ic_menu_refresh.xml
@@ -6,6 +6,6 @@
     android:viewportHeight="24">
 
     <path
-        android:fillColor="@color/inverted"
+        android:fillColor="@color/theme_accent"
         android:pathData="M17.65 6.35C16.2 4.9 14.21 4 12 4c-4.42 0-7.99 3.58-7.99 8s3.57 8 7.99 8c3.73 0 6.84-2.55 7.73-6h-2.08c-.82 2.33-3.04 4-5.65 4-3.31 0-6-2.69-6-6s2.69-6 6-6c1.66 0 3.14.69 4.22 1.78L13 11h7V4l-2.35 2.35z" />
 </vector>
diff --git a/res/drawable/ic_pause.xml b/res/drawable/ic_pause.xml
index 3b2d509ca01cde0012fe9436ae42408730828935..620beef0379661fb6f09e880a931e7ce2581e2a2 100644
--- a/res/drawable/ic_pause.xml
+++ b/res/drawable/ic_pause.xml
@@ -4,6 +4,6 @@
     android:viewportHeight="24.0"
     android:viewportWidth="24.0">
     <path
-        android:fillColor="#FF000000"
+        android:fillColor="@color/theme_accent"
         android:pathData="M6,19h4L10,5L6,5v14zM14,5v14h4L18,5h-4z" />
 </vector>
diff --git a/res/drawable/ic_system_update.xml b/res/drawable/ic_system_update.xml
index ecaaabbb19c4c5f743113c4dbd37fd7e31cc6647..3daa577ca74dc6976932a40b48dea47c74be8070 100644
--- a/res/drawable/ic_system_update.xml
+++ b/res/drawable/ic_system_update.xml
@@ -5,6 +5,6 @@
         android:viewportWidth="24.0"
         android:viewportHeight="24.0">
     <path
-        android:fillColor="@color/inverted"
+        android:fillColor="@color/theme_accent"
         android:pathData="M17,1.01L7,1c-1.1,0 -2,0.9 -2,2v18c0,1.1 0.9,2 2,2h10c1.1,0 2,-0.9 2,-2L19,3c0,-1.1 -0.9,-1.99 -2,-1.99zM17,19L7,19L7,5h10v14zM16,13h-3L13,8h-2v5L8,13l4,4 4,-4z"/>
 </vector>
diff --git a/res/layout/preferences_dialog.xml b/res/layout/preferences_dialog.xml
index e30c1172e78cb18db9f29de6e1ede686962c638a..5e784820ee539efeb895db7916eff2b527fdb360 100644
--- a/res/layout/preferences_dialog.xml
+++ b/res/layout/preferences_dialog.xml
@@ -18,7 +18,7 @@
             android:layout_height="wrap_content"
             android:layout_weight="1"
             android:text="@string/menu_auto_updates_check"
-            android:textColor="@color/inverted"
+            android:textColor="@color/theme_primary_text"
             android:textSize="16sp" />
 
         <Spinner
@@ -35,6 +35,7 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="16dp"
         android:text="@string/menu_auto_delete_updates"
+        android:textColor="@color/theme_primary_text"
         android:textSize="16sp" />
 
     <Switch
@@ -43,6 +44,7 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="16dp"
         android:text="@string/menu_mobile_data_warning"
+        android:textColor="@color/theme_primary_text"
         android:textSize="16sp" />
 
     <Switch
@@ -51,5 +53,6 @@
         android:layout_height="wrap_content"
         android:layout_marginBottom="16dp"
         android:text="@string/menu_ab_perf_mode"
+        android:textColor="@color/theme_primary_text"
         android:textSize="16sp" />
 </LinearLayout>
diff --git a/res/layout/update_item_view.xml b/res/layout/update_item_view.xml
index ade5d6db67bf07600642bbf5fbe1c447c242608e..1c0124a6e5f6434f698c751349d97b27732021b5 100644
--- a/res/layout/update_item_view.xml
+++ b/res/layout/update_item_view.xml
@@ -82,6 +82,7 @@
         <Button
             android:id="@id/update_action"
             style="@style/Widget.AppCompat.Button.Borderless.Colored"
+            android:textColor="@color/theme_accent"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
             android:padding="8dp"
diff --git a/res/mipmap-anydpi/ic_launcher.xml b/res/mipmap-anydpi/ic_launcher.xml
index b0e9bde1c25662f5042eb8c6064380050d8a2947..a1fe9f8b6e8920ec8fce0ed8a6e12e3b415494e0 100644
--- a/res/mipmap-anydpi/ic_launcher.xml
+++ b/res/mipmap-anydpi/ic_launcher.xml
@@ -14,7 +14,7 @@
      limitations under the License.
 -->
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-    <background android:drawable="@color/ic_background"/>
+    <background android:drawable="@color/theme_background"/>
     <foreground android:drawable="@drawable/ic_foreground"/>
 </adaptive-icon>
 
diff --git a/res/values-night/colors.xml b/res/values-night/colors.xml
deleted file mode 100644
index 4470f73c5c4cc1961e7684df44a5a91a1f8a0aff..0000000000000000000000000000000000000000
--- a/res/values-night/colors.xml
+++ /dev/null
@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<resources>
-    <color name="theme_primary">#212121</color>
-    <color name="theme_primary_dark">#1c1c1c</color>
-    <color name="theme_accent">@*android:color/accent_device_default_dark</color>
-
-    <color name="inverted">#f5f5f5</color>
-</resources>
diff --git a/res/values/colors.xml b/res/values/colors.xml
index a91c286a852998ac7aba5189cb2a49c7e0eeafac..9b0b700fdd5bab14663fdb38e244a5ef391c8d0b 100644
--- a/res/values/colors.xml
+++ b/res/values/colors.xml
@@ -1,9 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources>
-    <color name="theme_primary">#f5f5f5</color>
-    <color name="theme_primary_dark">#e0e0e0</color>
-    <color name="theme_accent">#007fff</color>
-
-    <color name="inverted">#212121</color>
-    <color name="ic_background">#333333</color>
+    <color name="theme_primary">@lineageos.platform:color/color_default_primary</color>
+    <color name="theme_primary_dark">@lineageos.platform:color/color_default_primary_dark</color>
+    <color name="theme_accent">@lineageos.platform:color/color_default_accent</color>
+    <color name="theme_on_accent">@lineageos.platform:color/color_default_view_on_accent</color>
+    <color name="theme_background">@lineageos.platform:color/color_default_background</color>
+    <color name="theme_primary_text">@lineageos.platform:color/color_default_primary_text</color>
+    <color name="theme_secondary_text">@lineageos.platform:color/color_default_secondary_text</color>
 </resources>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index e87f58c02159c90c387f7aff4ab5b7ac9558f969..766dad8713124ccdda2bd07399d074f5b9630a23 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -4,23 +4,29 @@
         <item name="colorPrimary">@color/theme_primary</item>
         <item name="colorPrimaryDark">@color/theme_primary_dark</item>
         <item name="colorAccent">@color/theme_accent</item>
+        <item name="android:textColorPrimary">@color/theme_primary_text</item>
+        <item name="android:textColorSecondary">@color/theme_secondary_text</item>
+        <item name="actionOverflowButtonStyle">@style/customOverFlow</item>
+        <item name="android:homeAsUpIndicator">@drawable/ic_arrow_back</item>
         <item name="windowActionModeOverlay">true</item>
         <item name="android:windowLightStatusBar">@bool/theme_is_light</item>
         <item name="android:windowLightNavigationBar">@bool/theme_is_light</item>
+        <item name="android:navigationBarColor">@color/theme_primary_dark</item>
+        <item name="android:navigationBarDividerColor">@color/theme_primary_dark</item>
+        <item name="android:statusBarColor">@color/theme_primary_dark</item>
+        <item name="snackbarStyle">@style/snackbar_style</item>
     </style>
 
     <style name="AppTheme.NoActionBar">
         <item name="windowActionBar">false</item>
         <item name="windowNoTitle">true</item>
         <item name="android:windowDrawsSystemBarBackgrounds">true</item>
-        <item name="android:statusBarColor">@android:color/transparent</item>
-        <item name="android:navigationBarColor">@android:color/transparent</item>
     </style>
 
     <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.ActionBar" />
 
     <style name="TextAppearanceInverted" parent="TextAppearance.AppCompat.Widget.ActionBar.Title">
-        <item name="android:textColor">@color/inverted</item>
+        <item name="android:textColor">@color/theme_primary_text</item>
     </style>
     <style name="TextAppearanceTransparent" parent="TextAppearance.AppCompat.Widget.ActionBar.Title">
         <item name="android:textColor">@android:color/transparent</item>
@@ -31,4 +37,15 @@
         <item name="android:dropDownVerticalOffset">8dp</item>
         <item name="android:dropDownHorizontalOffset">-16dp</item>
     </style>
+
+    <style name="customOverFlow">
+        <item name="android:src">@lineageos.platform:drawable/ic_menu</item>
+        <item name="tint">@color/theme_accent</item>
+        <item name="android:paddingRight">10dp</item>
+        <item name="android:foreground">?android:attr/selectableItemBackground</item>
+    </style>
+
+    <style name="snackbar_style" parent="Widget.Design.Snackbar">
+        <item name="android:background">@color/theme_primary_dark</item>
+    </style>
 </resources>
diff --git a/src/org/lineageos/updater/UpdatesActivity.java b/src/org/lineageos/updater/UpdatesActivity.java
index ad8bc3e6b9a70ed9b800cbf2e1341418845d2089..7a16edcff05d10f708a9f7ed7de1a3c2ee324fa3 100644
--- a/src/org/lineageos/updater/UpdatesActivity.java
+++ b/src/org/lineageos/updater/UpdatesActivity.java
@@ -41,6 +41,7 @@ import android.widget.TextView;
 
 import androidx.appcompat.app.AlertDialog;
 import androidx.appcompat.widget.Toolbar;
+import androidx.core.content.ContextCompat;
 import androidx.localbroadcastmanager.content.LocalBroadcastManager;
 import androidx.preference.PreferenceManager;
 import androidx.recyclerview.widget.LinearLayoutManager;
@@ -386,7 +387,11 @@ public class UpdatesActivity extends UpdatesListActivity {
 
     @Override
     public void showSnackbar(int stringId, int duration) {
-        Snackbar.make(findViewById(R.id.main_container), stringId, duration).show();
+        Snackbar snackbar = Snackbar.make(findViewById(R.id.main_container), stringId, duration);
+        View baseView = snackbar.getView();
+        TextView textView = baseView.findViewById(R.id.snackbar_text);
+        textView.setTextColor(ContextCompat.getColor(this, R.color.theme_primary_text));
+        snackbar.show();
     }
 
     private void refreshAnimationStart() {