diff --git a/shell/platform/android/io/flutter/plugin/platform/PlatformPlugin.java b/shell/platform/android/io/flutter/plugin/platform/PlatformPlugin.java
index 1bdc187d542..de4208e5461 100644
--- a/shell/platform/android/io/flutter/plugin/platform/PlatformPlugin.java
+++ b/shell/platform/android/io/flutter/plugin/platform/PlatformPlugin.java
@@ -15,8 +15,6 @@ import android.os.Build;
 import android.view.HapticFeedbackConstants;
 import android.view.SoundEffectConstants;
 import android.view.View;
-import android.view.Window;
-import android.util.Log;
 
 import io.flutter.plugin.common.ActivityLifecycleListener;
 import io.flutter.plugin.common.MethodChannel.MethodCallHandler;
@@ -32,7 +30,6 @@ import org.json.JSONObject;
  */
 public class PlatformPlugin implements MethodCallHandler, ActivityLifecycleListener {
     private final Activity mActivity;
-    private JSONObject mCurrentTheme;
     public static final int DEFAULT_SYSTEM_UI = View.SYSTEM_UI_FLAG_LAYOUT_STABLE
             | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN;
     private static final String kTextPlainFormat = "text/plain";
@@ -63,7 +60,7 @@ public class PlatformPlugin implements MethodCallHandler, ActivityLifecycleListe
                 setSystemChromeEnabledSystemUIOverlays((JSONArray) arguments);
                 result.success(null);
             } else if (method.equals("SystemChrome.setSystemUIOverlayStyle")) {
-                setSystemChromeSystemUIOverlayStyle((JSONObject) arguments);
+                setSystemChromeSystemUIOverlayStyle((String) arguments);
                 result.success(null);
             } else if (method.equals("SystemNavigator.pop")) {
                 popSystemNavigator();
@@ -221,70 +218,14 @@ public class PlatformPlugin implements MethodCallHandler, ActivityLifecycleListe
         updateSystemUiOverlays();
     }
 
-    private void updateSystemUiOverlays(){
+    private void updateSystemUiOverlays() {
         mActivity.getWindow().getDecorView().setSystemUiVisibility(mEnabledOverlays);
-        if (mCurrentTheme != null) {
-            setSystemChromeSystemUIOverlayStyle(mCurrentTheme);
-        }
     }
 
-    private void setSystemChromeSystemUIOverlayStyle(JSONObject message) {
-        Window window = mActivity.getWindow();
-        View view = window.getDecorView();
-        int flags = view.getSystemUiVisibility();
-        try {
-            // You can change the navigation bar color (including translucent colors)
-            // in Android, but you can't change the color of the navigation buttons until Android O.
-            // LIGHT vs DARK effectively isn't supported until then.
-            // Build.VERSION_CODES.O
-            if (Build.VERSION.SDK_INT >= 26) {
-                if (!message.isNull("systemNavigationBarIconBrightness")) {
-                    String systemNavigationBarIconBrightness = message.getString("systemNavigationBarIconBrightness");
-                    switch (systemNavigationBarIconBrightness) {
-                        case "Brightness.dark":
-                            //View.SYSTEM_UI_FLAG_LIGHT_NAVIGATION_BAR
-                            flags |= 0x10;
-                            break;
-                        case "Brightness.light":
-                            if ((flags & 0x10) == 0x10) {
-                                flags ^= 0x10;
-                            }
-                            break;
-                    }
-                }
-                if (!message.isNull("systemNavigationBarColor")) {
-                    window.setNavigationBarColor(message.getInt("systemNavigationBarColor"));
-                }
-            }
-            // Build.VERSION_CODES.M
-            if (Build.VERSION.SDK_INT >= 23) {
-                if (!message.isNull("statusBarIconBrightness")) {
-                    String statusBarIconBrightness = message.getString("statusBarIconBrightness");
-                    switch (statusBarIconBrightness) {
-                        case "Brightness.dark":
-                            // View.SYSTEM_UI_FLAG_LIGHT_STATUS_BAR
-                            flags |= 0x2000;
-                            break;
-                        case "Brightness.light":
-                            if ((flags & 0x2000) == 0x2000) {
-                                flags ^= 0x2000;
-                            }
-                            break;
-                    }
-                }
-                if (!message.isNull("statusBarColor")) {
-                    window.setStatusBarColor(message.getInt("statusBarColor"));
-                }
-            }
-            if (!message.isNull("systemNavigationBarDividerColor")) {
-                // Not availible until Android P.
-                // window.setNavigationBarDividerColor(systemNavigationBarDividerColor);
-            }
-            view.setSystemUiVisibility(flags);
-            mCurrentTheme = message;
-        } catch (JSONException err) {
-            Log.i("PlatformPlugin", err.toString());
-        }
+    private void setSystemChromeSystemUIOverlayStyle(String style) {
+        // You can change the navigation bar color (including translucent colors)
+        // in Android, but you can't change the color of the navigation buttons,
+        // so LIGHT vs DARK effectively isn't supported in Android.
     }
 
     private void popSystemNavigator() {
diff --git a/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm b/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm
index 51df7e1aec9..c312cac28b3 100644
--- a/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm
+++ b/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm
@@ -137,12 +137,11 @@ using namespace shell;
       ![overlays containsObject:@"SystemUiOverlay.top"];
 }
 
-- (void)setSystemChromeSystemUIOverlayStyle:(NSDictionary*)message {
-  NSString* style = message[@"statusBarBrightness"]
-  UIStatusBarStyle statusBarStyle 
-  if ([style isEqualToString:@"Brightness.light"])
+- (void)setSystemChromeSystemUIOverlayStyle:(NSString*)style {
+  UIStatusBarStyle statusBarStyle;
+  if ([style isEqualToString:@"SystemUiOverlayStyle.light"])
     statusBarStyle = UIStatusBarStyleLightContent;
-  else if ([style isEqualToString:@"Brightness.dark"])
+  else if ([style isEqualToString:@"SystemUiOverlayStyle.dark"])
     statusBarStyle = UIStatusBarStyleDefault;
   else
     return;