diff --git a/src/com/android/launcher3/graphics/PreloadIconDrawable.java b/src/com/android/launcher3/graphics/PreloadIconDrawable.java
index 304d496..ce824df 100644
--- a/src/com/android/launcher3/graphics/PreloadIconDrawable.java
+++ b/src/com/android/launcher3/graphics/PreloadIconDrawable.java
@@ -24,6 +24,7 @@
 import android.animation.AnimatorListenerAdapter;
 import android.animation.ObjectAnimator;
 import android.content.Context;
+import android.content.res.Configuration;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Matrix;
@@ -34,10 +35,12 @@
 import android.util.Pair;
 import android.util.Property;
 import android.util.SparseArray;
+import android.view.ContextThemeWrapper;
 
 import com.android.launcher3.FastBitmapDrawable;
 import com.android.launcher3.anim.Interpolators;
 import com.android.launcher3.model.data.ItemInfoWithIcon;
+import com.android.launcher3.util.Themes;
 
 import java.lang.ref.WeakReference;
 
@@ -77,6 +80,9 @@
     private static final SparseArray<WeakReference<Pair<Path, Bitmap>>> sShadowCache =
             new SparseArray<>();
 
+    private static final int PRELOAD_ACCENT_COLOR_INDEX = 0;
+    private static final int PRELOAD_BACKGROUND_COLOR_INDEX = 1;
+
     private final Matrix mTmpMatrix = new Matrix();
     private final PathMeasure mPathMeasure = new PathMeasure();
 
@@ -91,6 +97,9 @@
 
     private Bitmap mShadowBitmap;
     private final int mIndicatorColor;
+    private final int mSystemAccentColor;
+    private final int mSystemBackgroundColor;
+    private final boolean mIsDarkMode;
 
     private int mTrackAlpha;
     private float mTrackLength;
@@ -104,11 +113,23 @@
 
     private ObjectAnimator mCurrentAnim;
 
+    private boolean mIsStartable;
+
     public PreloadIconDrawable(ItemInfoWithIcon info, Context context) {
-        this(info, IconPalette.getPreloadProgressColor(context, info.bitmap.color));
+        this(
+                info,
+                IconPalette.getPreloadProgressColor(context, info.bitmap.color),
+                getPreloadColors(context),
+            (context.getResources().getConfiguration().uiMode
+                    & Configuration.UI_MODE_NIGHT_MASK
+                    & Configuration.UI_MODE_NIGHT_YES) != 0) /* isDarkMode */;
     }
 
-    public PreloadIconDrawable(ItemInfoWithIcon info, int indicatorColor) {
+    public PreloadIconDrawable(
+            ItemInfoWithIcon info,
+            int indicatorColor,
+            int[] preloadColors,
+            boolean isDarkMode) {
         super(info.bitmap);
         mItem = info;
         mShapePath = getShapePath();
@@ -120,9 +141,12 @@
         mProgressPaint.setStrokeCap(Paint.Cap.ROUND);
         mIndicatorColor = indicatorColor;
 
-        setInternalProgress(0);
+        mSystemAccentColor = preloadColors[PRELOAD_ACCENT_COLOR_INDEX];
+        mSystemBackgroundColor = preloadColors[PRELOAD_BACKGROUND_COLOR_INDEX];
+        mIsDarkMode = isDarkMode;
 
-        setIsDisabled(!info.isAppStartable());
+        setInternalProgress(info.getProgressLevel());
+        setIsStartable(info.isAppStartable());
     }
 
     @Override
@@ -148,7 +172,7 @@
     }
 
     private Bitmap getShadowBitmap(int width, int height, float shadowRadius) {
-        int key = (width << 16) | height;
+        int key = ((width << 16) | height) * (mIsDarkMode ? -1 : 1);
         WeakReference<Pair<Path, Bitmap>> shadowRef = sShadowCache.get(key);
         Pair<Path, Bitmap> cache = shadowRef != null ? shadowRef.get() : null;
         Bitmap shadow = cache != null && cache.first.equals(mShapePath) ? cache.second : null;
@@ -157,8 +181,9 @@
         }
         shadow = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
         Canvas c = new Canvas(shadow);
-        mProgressPaint.setShadowLayer(shadowRadius, 0, 0, COLOR_SHADOW);
-        mProgressPaint.setColor(COLOR_TRACK);
+        mProgressPaint.setShadowLayer(shadowRadius, 0, 0, mIsStartable
+                ? COLOR_SHADOW : mSystemAccentColor);
+        mProgressPaint.setColor(mIsStartable ? COLOR_TRACK : mSystemBackgroundColor);
         mProgressPaint.setAlpha(MAX_PAINT_ALPHA);
         c.drawPath(mScaledTrackPath, mProgressPaint);
         mProgressPaint.clearShadowLayer();
@@ -176,7 +201,7 @@
         }
 
         // Draw track.
-        mProgressPaint.setColor(mIndicatorColor);
+        mProgressPaint.setColor(mIsStartable ? mIndicatorColor : mSystemAccentColor);
         mProgressPaint.setAlpha(mTrackAlpha);
         if (mShadowBitmap != null) {
             canvas.drawBitmap(mShadowBitmap, bounds.left, bounds.top, mProgressPaint);
@@ -215,6 +240,14 @@
         return !mRanFinishAnimation;
     }
 
+    /** Sets whether this icon should display the startable app UI. */
+    public void setIsStartable(boolean isStartable) {
+        if (mIsStartable != isStartable) {
+            mIsStartable = isStartable;
+            setIsDisabled(!isStartable);
+        }
+    }
+
     private void updateInternalState(float finalProgress, boolean shouldAnimate, boolean isFinish) {
         if (mCurrentAnim != null) {
             mCurrentAnim.cancel();
@@ -295,6 +328,18 @@
         invalidateSelf();
     }
 
+    private static int[] getPreloadColors(Context context) {
+        Context dayNightThemeContext = new ContextThemeWrapper(
+                context, android.R.style.Theme_DeviceDefault_DayNight);
+        int[] preloadColors = new int[2];
+
+        preloadColors[PRELOAD_ACCENT_COLOR_INDEX] = Themes.getColorAccent(dayNightThemeContext);
+        preloadColors[PRELOAD_BACKGROUND_COLOR_INDEX] = Themes.getColorBackgroundFloating(
+                dayNightThemeContext);
+
+        return preloadColors;
+    }
+
     /**
      * Returns a FastBitmapDrawable with the icon.
      */
@@ -305,13 +350,21 @@
     @Override
     public ConstantState getConstantState() {
         return new PreloadIconConstantState(
-                mBitmap, mIconColor, !mItem.isAppStartable(), mItem, mIndicatorColor);
+                mBitmap,
+                mIconColor,
+                !mItem.isAppStartable(),
+                mItem,
+                mIndicatorColor,
+                new int[] {mSystemAccentColor, mSystemBackgroundColor},
+                mIsDarkMode);
     }
 
     protected static class PreloadIconConstantState extends FastBitmapConstantState {
 
         protected final ItemInfoWithIcon mInfo;
         protected final int mIndicatorColor;
+        protected final int[] mPreloadColors;
+        protected final boolean mIsDarkMode;
         protected final int mLevel;
 
         public PreloadIconConstantState(
@@ -319,19 +372,24 @@
                 int iconColor,
                 boolean isDisabled,
                 ItemInfoWithIcon info,
-                int indicatorcolor) {
+                int indicatorColor,
+                int[] preloadColors,
+                boolean isDarkMode) {
             super(bitmap, iconColor, isDisabled);
             mInfo = info;
-            mIndicatorColor = indicatorcolor;
+            mIndicatorColor = indicatorColor;
+            mPreloadColors = preloadColors;
+            mIsDarkMode = isDarkMode;
             mLevel = info.getProgressLevel();
         }
 
         @Override
         public PreloadIconDrawable newDrawable() {
-            PreloadIconDrawable drawable = new PreloadIconDrawable(mInfo, mIndicatorColor);
-            drawable.setLevel(mLevel);
-            drawable.setIsDisabled(mIsDisabled);
-            return drawable;
+            return new PreloadIconDrawable(
+                    mInfo,
+                    mIndicatorColor,
+                    mPreloadColors,
+                    mIsDarkMode);
         }
 
         @Override
diff --git a/src/com/android/launcher3/util/Themes.java b/src/com/android/launcher3/util/Themes.java
index b74686f..55d17fc 100644
--- a/src/com/android/launcher3/util/Themes.java
+++ b/src/com/android/launcher3/util/Themes.java
@@ -81,6 +81,11 @@
         return getAttrColor(context, android.R.attr.colorAccent);
     }
 
+    /** Returns the floating background color attribute. */
+    public static int getColorBackgroundFloating(Context context) {
+        return getAttrColor(context, android.R.attr.colorBackgroundFloating);
+    }
+
     public static int getAttrColor(Context context, int attr) {
         TypedArray ta = context.obtainStyledAttributes(new int[]{attr});
         int colorAccent = ta.getColor(0, 0);