Color of widget not changing

package com.teamtreehouse.android.listwidget;

import android.app.PendingIntent;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProvider;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.widget.RemoteViews;

public class AppWidgetTheme extends AppWidgetProvider {

    @Override
    public void onUpdate(Context context, AppWidgetManager appWidgetManager, int[] appWidgetIds) {

        //int[] ids=AppWidgetManager.getInstance(context).getAppWidgetIds(new ComponentName(context,AppWidgetProvider.class));
        int[] realids=AppWidgetManager.getInstance(context).getAppWidgetIds(new ComponentName(context,AppWidgetProvider.class));

        for(int ids : realids){

            Intent intent=new Intent(context,AppWidgetTheme.class);
            intent.setAction(AppWidgetManager.ACTION_APPWIDGET_UPDATE);
            intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS,realids);

            RemoteViews remoteViews=new RemoteViews(context.getPackageName(),R.layout.widget_layout);
            int r = (int)(Math.random() * 0xff);
            int g = (int)(Math.random() * 0xff);
            int b = (int)(Math.random() * 0xff);
            int color = (0xff << 24) + (r << 16) + (g << 8) + b;
            remoteViews.setInt(R.id.colored,"setBackgroundColor",color);

            PendingIntent pendingIntent=PendingIntent.getBroadcast(context,0,intent,PendingIntent.FLAG_UPDATE_CURRENT);

            remoteViews.setOnClickPendingIntent(R.id.colored,pendingIntent);
            appWidgetManager.updateAppWidget(ids,remoteViews);
        }
    }
}

<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/colored"
    android:background="@android:color/holo_blue_dark"
    >

</FrameLayout>

<?xml version="1.0" encoding="utf-8"?>
<appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
    android:minWidth="100dp"
    android:minHeight="100dp"
    android:resizeMode="vertical|horizontal"
    android:updatePeriodMillis="3600000"
    android:initialLayout="@layout/widget_layout"
    android:widgetCategory="home_screen"
    />