diff --git a/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java b/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java
index 8218517..711e59a 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/WallpaperColorInfo.java
@@ -35,6 +35,10 @@
 @TargetApi(Build.VERSION_CODES.P)
 public class WallpaperColorInfo implements OnColorsChangedListener {
 
+    private static final int MAIN_COLOR_LIGHT = 0xffdadce0;
+    private static final int MAIN_COLOR_DARK = 0xff202124;
+    private static final int MAIN_COLOR_REGULAR = 0xff000000;
+
     private static final Object sInstanceLock = new Object();
     private static WallpaperColorInfo sInstance;
 
@@ -79,6 +83,10 @@
         return mExtractionInfo.supportsDarkText;
     }
 
+    public boolean isMainColorDark() {
+        return mExtractionInfo.mainColor == MAIN_COLOR_DARK;
+    }
+
     @Override
     public void onColorsChanged(WallpaperColors colors, int which) {
         if ((which & FLAG_SYSTEM) != 0) {
diff --git a/res/drawable-v28/round_rect_folder.xml b/res/drawable-v28/round_rect_folder.xml
new file mode 100644
index 0000000..0403be0
--- /dev/null
+++ b/res/drawable-v28/round_rect_folder.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2019 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="rectangle">
+    <solid android:color="?attr/folderFillColor" />
+    <corners android:radius="?android:attr/dialogCornerRadius" />
+</shape>
diff --git a/res/drawable/round_rect_folder.xml b/res/drawable/round_rect_folder.xml
new file mode 100644
index 0000000..8b3d06c
--- /dev/null
+++ b/res/drawable/round_rect_folder.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+     Copyright (C) 2019 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+       android:shape="rectangle">
+    <solid android:color="?attr/folderFillColor" />
+    <corners android:radius="@dimen/bg_round_rect_radius" />
+</shape>
diff --git a/res/layout/folder_application.xml b/res/layout/folder_application.xml
index de861a0..c156e11 100644
--- a/res/layout/folder_application.xml
+++ b/res/layout/folder_application.xml
@@ -18,5 +18,6 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:launcher="http://schemas.android.com/apk/res-auto"
     style="@style/BaseIcon"
+    android:textColor="?attr/folderTextColor"
     android:includeFontPadding="false"
     launcher:iconDisplay="folder" />
diff --git a/res/layout/user_folder_icon_normalized.xml b/res/layout/user_folder_icon_normalized.xml
index 2e6ce94..835fee2 100644
--- a/res/layout/user_folder_icon_normalized.xml
+++ b/res/layout/user_folder_icon_normalized.xml
@@ -18,7 +18,7 @@
     xmlns:launcher="http://schemas.android.com/apk/res-auto"
     android:layout_width="wrap_content"
     android:layout_height="wrap_content"
-    android:background="@drawable/round_rect_primary"
+    android:background="@drawable/round_rect_folder"
     android:elevation="5dp"
     android:orientation="vertical" >
 
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 43194d5..69b8c8a 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -36,8 +36,10 @@
     <attr name="loadingIconColor" format="color" />
 
     <attr name="folderDotColor" format="color" />
+    <attr name="folderFillColor" format="color" />
     <attr name="folderIconRadius" format="float" />
     <attr name="folderIconBorderColor" format="color" />
+    <attr name="folderTextColor" format="color" />
 
     <!-- BubbleTextView specific attributes. -->
     <declare-styleable name="BubbleTextView">
@@ -55,7 +57,7 @@
 
     <!-- BubbleTextView specific attributes. -->
     <declare-styleable name="FolderIconPreview">
-        <attr name="android:colorPrimary" />
+        <attr name="folderFillColor" />
         <attr name="folderIconBorderColor" />
         <attr name="folderDotColor" />
     </declare-styleable>
diff --git a/res/values/styles.xml b/res/values/styles.xml
index 7932c6d..8116e30 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -26,6 +26,7 @@
         <item name="android:windowBackground">@android:color/transparent</item>
         <item name="android:windowNoTitle">true</item>
         <item name="android:windowShowWallpaper">true</item>
+        <item name="folderTextColor">?attr/workspaceTextColor</item>
     </style>
 
     <style name="LauncherTheme" parent="@style/BaseLauncherTheme">
@@ -44,7 +45,9 @@
         <item name="workspaceStatusBarScrim">@drawable/workspace_bg</item>
         <item name="widgetsTheme">@style/WidgetContainerTheme</item>
         <item name="folderDotColor">?android:attr/colorPrimary</item>
+        <item name="folderFillColor">#CDFFFFFF</item>
         <item name="folderIconBorderColor">?android:attr/colorPrimary</item>
+        <item name="folderTextColor">#FF212121</item>
         <item name="loadingIconColor">#CCFFFFFF</item>
 
         <item name="android:windowTranslucentStatus">false</item>
@@ -54,6 +57,11 @@
         <item name="android:navigationBarColor">#00000000</item>
     </style>
 
+    <style name="LauncherTheme.DarkMainColor" parent="@style/LauncherTheme">
+        <item name="folderFillColor">#FF3C4043</item> <!-- 100% GM2 800 -->
+        <item name="folderTextColor">?attr/workspaceTextColor</item>
+    </style>
+
     <style name="LauncherTheme.DarkText" parent="@style/LauncherTheme">
         <item name="workspaceTextColor">#FF212121</item>
         <item name="allAppsInterimScrimAlpha">128</item>
@@ -63,7 +71,9 @@
         <item name="isWorkspaceDarkText">true</item>
         <item name="workspaceStatusBarScrim">@null</item>
         <item name="folderDotColor">#FF464646</item>
+        <item name="folderFillColor">#CDFFFFFF</item>
         <item name="folderIconBorderColor">#FF80868B</item>
+        <item name="folderTextColor">?attr/workspaceTextColor</item>
     </style>
 
     <style name="LauncherTheme.Dark" parent="@style/LauncherTheme">
@@ -81,13 +91,22 @@
         <item name="popupColorTertiary">#757575</item> <!-- Gray 600 -->
         <item name="widgetsTheme">@style/WidgetContainerTheme.Dark</item>
         <item name="folderDotColor">#FF464646</item>
+        <item name="folderFillColor">#DD3C4043</item> <!-- 87% GM2 800 -->
         <item name="folderIconBorderColor">#FF80868B</item>
+        <item name="folderTextColor">@android:color/white</item>
         <item name="isMainColorDark">true</item>
         <item name="loadingIconColor">#99FFFFFF</item>
     </style>
 
+    <style name="LauncherTheme.Dark.DarkMainColor" parent="@style/LauncherTheme.Dark">
+        <item name="folderFillColor">#FF3C4043</item> <!-- 100% GM2 800 -->
+        <item name="folderTextColor">@android:color/white</item>
+    </style>
+
     <style name="LauncherTheme.Dark.DarkText" parent="@style/LauncherTheme.Dark">
         <item name="allAppsInterimScrimAlpha">25</item>
+        <item name="folderFillColor">#CDFFFFFF</item>
+        <item name="folderTextColor">?attr/workspaceTextColor</item>
         <item name="workspaceTextColor">#FF212121</item>
         <item name="workspaceShadowColor">@android:color/transparent</item>
         <item name="workspaceAmbientShadowColor">@android:color/transparent</item>
@@ -99,8 +118,11 @@
     <!-- A derivative project can extend these themes to customize the application theme without
          affecting the base theme -->
     <style name="AppTheme" parent="@style/LauncherTheme" />
+    <style name="AppTheme.DarkMainColor" parent="@style/LauncherTheme.DarkMainColor" />
     <style name="AppTheme.DarkText" parent="@style/LauncherTheme.DarkText" />
+
     <style name="AppTheme.Dark" parent="@style/LauncherTheme.Dark" />
+    <style name="AppTheme.Dark.DarkMainColor" parent="@style/LauncherTheme.Dark.DarkMainColor" />
     <style name="AppTheme.Dark.DarkText" parent="@style/LauncherTheme.Dark.DarkText" />
 
     <style name="AppItemActivityTheme" parent="@android:style/Theme.Material.Light.Dialog.Alert">
@@ -157,7 +179,7 @@
         <item name="android:shadowRadius">0</item>
     </style>
 
-    <!-- Icon displayed on the worksapce -->
+    <!-- Icon displayed on the workspace -->
     <style name="BaseIcon.Workspace" >
         <item name="android:shadowRadius">2.0</item>
         <item name="android:shadowColor">?attr/workspaceShadowColor</item>
diff --git a/src/com/android/launcher3/folder/FolderAnimationManager.java b/src/com/android/launcher3/folder/FolderAnimationManager.java
index 0e2ddd4..9373976 100644
--- a/src/com/android/launcher3/folder/FolderAnimationManager.java
+++ b/src/com/android/launcher3/folder/FolderAnimationManager.java
@@ -152,7 +152,7 @@
         final float yDistance = initialY - lp.y;
 
         // Set up the Folder background.
-        final int finalColor = Themes.getAttrColor(mContext, android.R.attr.colorPrimary);
+        final int finalColor = Themes.getAttrColor(mContext, R.attr.folderFillColor);
         final int initialColor = setColorAlphaBound(
                 finalColor, mPreviewBackground.getBackgroundAlpha());
         mFolderBackground.mutate();
diff --git a/src/com/android/launcher3/folder/PreviewBackground.java b/src/com/android/launcher3/folder/PreviewBackground.java
index 09e8276..b2c0ca7 100644
--- a/src/com/android/launcher3/folder/PreviewBackground.java
+++ b/src/com/android/launcher3/folder/PreviewBackground.java
@@ -131,7 +131,7 @@
         TypedArray ta = context.getTheme().obtainStyledAttributes(R.styleable.FolderIconPreview);
         mDotColor = ta.getColor(R.styleable.FolderIconPreview_folderDotColor, 0);
         mStrokeColor = ta.getColor(R.styleable.FolderIconPreview_folderIconBorderColor, 0);
-        mBgColor = ta.getColor(R.styleable.FolderIconPreview_android_colorPrimary, 0);
+        mBgColor = ta.getColor(R.styleable.FolderIconPreview_folderFillColor, 0);
         ta.recycle();
 
         DeviceProfile grid = activity.getWallpaperDeviceProfile();
diff --git a/src/com/android/launcher3/util/Themes.java b/src/com/android/launcher3/util/Themes.java
index 0c44012..0d02715 100644
--- a/src/com/android/launcher3/util/Themes.java
+++ b/src/com/android/launcher3/util/Themes.java
@@ -48,10 +48,12 @@
 
         if (darkTheme) {
             return wallpaperColorInfo.supportsDarkText() ?
-                    R.style.AppTheme_Dark_DarkText : R.style.AppTheme_Dark;
+                    R.style.AppTheme_Dark_DarkText : wallpaperColorInfo.isMainColorDark() ?
+                            R.style.AppTheme_Dark_DarkMainColor : R.style.AppTheme_Dark;
         } else {
             return wallpaperColorInfo.supportsDarkText() ?
-                    R.style.AppTheme_DarkText : R.style.AppTheme;
+                    R.style.AppTheme_DarkText : wallpaperColorInfo.isMainColorDark() ?
+                            R.style.AppTheme_DarkMainColor : R.style.AppTheme;
         }
     }
 
diff --git a/src_ui_overrides/com/android/launcher3/uioverrides/WallpaperColorInfo.java b/src_ui_overrides/com/android/launcher3/uioverrides/WallpaperColorInfo.java
index 56e3260..b05e125 100644
--- a/src_ui_overrides/com/android/launcher3/uioverrides/WallpaperColorInfo.java
+++ b/src_ui_overrides/com/android/launcher3/uioverrides/WallpaperColorInfo.java
@@ -30,6 +30,10 @@
 
 public class WallpaperColorInfo implements WallpaperManagerCompat.OnColorsChangedListenerCompat {
 
+    private static final int MAIN_COLOR_LIGHT = 0xffdadce0;
+    private static final int MAIN_COLOR_DARK = 0xff202124;
+    private static final int MAIN_COLOR_REGULAR = 0xff000000;
+
     private static final int FALLBACK_COLOR = Color.WHITE;
     private static final Object sInstanceLock = new Object();
     private static WallpaperColorInfo sInstance;
@@ -76,6 +80,10 @@
         return mSupportsDarkText;
     }
 
+    public boolean isMainColorDark() {
+        return mMainColor == MAIN_COLOR_DARK;
+    }
+
     @Override
     public void onColorsChanged(WallpaperColorsCompat colors, int which) {
         if ((which & FLAG_SYSTEM) != 0) {