diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 321d188d3a..adb8a546d0 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -45,8 +45,17 @@
         android:roundIcon="${appIconRound}"
         android:supportsRtl="true"
         android:theme="@style/AppTheme.Launcher" >
+
+        <activity
+            android:name=".widget.WidgetConfigureActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE" />
+            </intent-filter>
+        </activity>
+
         <receiver
-            android:name=".Widget"
+            android:name=".widget.Widget"
             android:exported="true" >
             <intent-filter>
                 <action android:name="android.appwidget.action.APPWIDGET_UPDATE" />
diff --git a/app/src/main/java/info/nightscout/androidaps/MainApp.kt b/app/src/main/java/info/nightscout/androidaps/MainApp.kt
index 3bc938d2f8..cbecb3cc31 100644
--- a/app/src/main/java/info/nightscout/androidaps/MainApp.kt
+++ b/app/src/main/java/info/nightscout/androidaps/MainApp.kt
@@ -41,6 +41,7 @@ import info.nightscout.androidaps.utils.LocalAlertUtils
 import info.nightscout.androidaps.utils.ProcessLifecycleListener
 import info.nightscout.androidaps.utils.buildHelper.BuildHelper
 import info.nightscout.androidaps.utils.locale.LocaleHelper
+import info.nightscout.androidaps.widget.updateWidget
 import info.nightscout.shared.logging.AAPSLogger
 import info.nightscout.shared.logging.LTag
 import info.nightscout.shared.sharedPreferences.SP
diff --git a/app/src/main/java/info/nightscout/androidaps/di/UIModule.kt b/app/src/main/java/info/nightscout/androidaps/di/UIModule.kt
index 13083f32a5..160601bad2 100644
--- a/app/src/main/java/info/nightscout/androidaps/di/UIModule.kt
+++ b/app/src/main/java/info/nightscout/androidaps/di/UIModule.kt
@@ -2,8 +2,9 @@ package info.nightscout.androidaps.di
 
 import dagger.Module
 import dagger.android.ContributesAndroidInjector
-import info.nightscout.androidaps.Widget
+import info.nightscout.androidaps.widget.WidgetConfigureActivity
 import info.nightscout.androidaps.skins.SkinListPreference
+import info.nightscout.androidaps.widget.Widget
 
 @Module
 @Suppress("unused")
@@ -11,4 +12,6 @@ abstract class UIModule {
 
     @ContributesAndroidInjector abstract fun skinListPreferenceInjector(): SkinListPreference
     @ContributesAndroidInjector abstract fun aapsWidgetInjector(): Widget
+    @ContributesAndroidInjector abstract fun contributesWidgetConfigureActivity(): WidgetConfigureActivity
+
 }
\ No newline at end of file
diff --git a/app/src/main/java/info/nightscout/androidaps/receivers/KeepAliveWorker.kt b/app/src/main/java/info/nightscout/androidaps/receivers/KeepAliveWorker.kt
index 01c19acbcc..3370908ea2 100644
--- a/app/src/main/java/info/nightscout/androidaps/receivers/KeepAliveWorker.kt
+++ b/app/src/main/java/info/nightscout/androidaps/receivers/KeepAliveWorker.kt
@@ -15,12 +15,12 @@ import info.nightscout.androidaps.plugins.bus.RxBus
 import info.nightscout.androidaps.plugins.configBuilder.RunningConfiguration
 import info.nightscout.androidaps.plugins.general.maintenance.MaintenancePlugin
 import info.nightscout.androidaps.queue.commands.Command
-import info.nightscout.androidaps.updateWidget
 import info.nightscout.androidaps.utils.DateUtil
 import info.nightscout.androidaps.utils.FabricPrivacy
 import info.nightscout.androidaps.utils.LocalAlertUtils
 import info.nightscout.androidaps.utils.T
 import info.nightscout.androidaps.utils.resources.ResourceHelper
+import info.nightscout.androidaps.widget.updateWidget
 import info.nightscout.shared.logging.AAPSLogger
 import info.nightscout.shared.logging.LTag
 import java.util.concurrent.TimeUnit
diff --git a/app/src/main/java/info/nightscout/androidaps/Widget.kt b/app/src/main/java/info/nightscout/androidaps/widget/Widget.kt
similarity index 94%
rename from app/src/main/java/info/nightscout/androidaps/Widget.kt
rename to app/src/main/java/info/nightscout/androidaps/widget/Widget.kt
index aef1b1fd8d..4c3d145915 100644
--- a/app/src/main/java/info/nightscout/androidaps/Widget.kt
+++ b/app/src/main/java/info/nightscout/androidaps/widget/Widget.kt
@@ -1,4 +1,4 @@
-package info.nightscout.androidaps
+package info.nightscout.androidaps.widget
 
 import android.app.PendingIntent
 import android.appwidget.AppWidgetManager
@@ -6,10 +6,14 @@ import android.appwidget.AppWidgetProvider
 import android.content.ComponentName
 import android.content.Context
 import android.content.Intent
+import android.graphics.Color
 import android.graphics.Paint
 import android.view.View
 import android.widget.RemoteViews
 import dagger.android.HasAndroidInjector
+import info.nightscout.androidaps.Constants
+import info.nightscout.androidaps.MainActivity
+import info.nightscout.androidaps.R
 import info.nightscout.androidaps.data.ProfileSealed
 import info.nightscout.androidaps.database.interfaces.end
 import info.nightscout.androidaps.extensions.directionToIcon
@@ -73,13 +77,16 @@ class Widget : AppWidgetProvider() {
 
     private fun updateAppWidget(context: Context, appWidgetManager: AppWidgetManager, appWidgetId: Int) {
         aapsLogger.debug(LTag.WIDGET, "updateAppWidget called")
+
         val views = RemoteViews(context.packageName, R.layout.widget_layout)
+        val alpha = sp.getInt(WidgetConfigureActivity.PREF_PREFIX_KEY + appWidgetId, WidgetConfigureActivity.DEFAULT_OPACITY)
 
         // Create an Intent to launch MainActivity when clicked
         val intent = Intent(context, MainActivity::class.java).also { it.action = intentAction }
         val pendingIntent = PendingIntent.getActivity(context, 0, intent, PendingIntent.FLAG_IMMUTABLE or PendingIntent.FLAG_UPDATE_CURRENT)
         // Widgets allow click handlers to only launch pending intents
         views.setOnClickPendingIntent(R.id.widget_layout, pendingIntent)
+        views.setInt(R.id.widget_layout, "setBackgroundColor", Color.argb(alpha, 0, 0, 0))
 
         updateBg(views)
         updateTemporaryBasal(views)
@@ -104,11 +111,13 @@ class Widget : AppWidgetProvider() {
             }
         )
         views.setImageViewResource(R.id.arrow, trendCalculator.getTrendArrow(overviewData.lastBg).directionToIcon())
-        views.setInt(R.id.arrow, "setColorFilter", when {
-            overviewData.isLow  -> rh.gc(R.color.low)
-            overviewData.isHigh -> rh.gc(R.color.high)
-            else                -> rh.gc(R.color.inrange)
-        })
+        views.setInt(
+            R.id.arrow, "setColorFilter", when {
+                overviewData.isLow  -> rh.gc(R.color.low)
+                overviewData.isHigh -> rh.gc(R.color.high)
+                else                -> rh.gc(R.color.inrange)
+            }
+        )
 
         val glucoseStatus = glucoseStatusProvider.glucoseStatusData
         if (glucoseStatus != null) {
diff --git a/app/src/main/java/info/nightscout/androidaps/widget/WidgetConfigureActivity.kt b/app/src/main/java/info/nightscout/androidaps/widget/WidgetConfigureActivity.kt
new file mode 100644
index 0000000000..4647b86454
--- /dev/null
+++ b/app/src/main/java/info/nightscout/androidaps/widget/WidgetConfigureActivity.kt
@@ -0,0 +1,78 @@
+package info.nightscout.androidaps.widget
+
+import android.appwidget.AppWidgetManager
+import android.content.Intent
+import android.os.Bundle
+import android.widget.SeekBar
+import dagger.android.DaggerActivity
+import info.nightscout.androidaps.databinding.WidgetConfigureBinding
+import info.nightscout.shared.sharedPreferences.SP
+import javax.inject.Inject
+
+/**
+ * The configuration screen for the [Widget] AppWidget.
+ */
+class WidgetConfigureActivity : DaggerActivity() {
+
+    @Inject lateinit var sp: SP
+
+    companion object {
+
+        @Suppress("PrivatePropertyName")
+        const val PREF_PREFIX_KEY = "appwidget_"
+        const val DEFAULT_OPACITY = 25
+    }
+
+    private var appWidgetId = AppWidgetManager.INVALID_APPWIDGET_ID
+    private var value = 0
+
+    private lateinit var binding: WidgetConfigureBinding
+
+    public override fun onCreate(icicle: Bundle?) {
+        super.onCreate(icicle)
+
+        // Set the result to CANCELED.  This will cause the widget host to cancel
+        // out of the widget placement if the user presses the back button.
+        setResult(RESULT_CANCELED)
+
+        binding = WidgetConfigureBinding.inflate(layoutInflater)
+        setContentView(binding.root)
+
+        binding.seekBar.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
+            override fun onStopTrackingTouch(seekBar: SeekBar) {
+                // Make sure we pass back the original appWidgetId
+                val resultValue = Intent()
+                resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId)
+                setResult(RESULT_OK, resultValue)
+                finish()
+            }
+
+            override fun onStartTrackingTouch(seekBar: SeekBar) {}
+            override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+                value = progress
+                saveTitlePref(appWidgetId, value)
+                updateWidget(this@WidgetConfigureActivity)
+            }
+        })
+
+        // Find the widget id from the intent.
+        appWidgetId = intent.extras?.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID) ?: AppWidgetManager.INVALID_APPWIDGET_ID
+
+        // If this activity was started with an intent without an app widget ID, finish with an error.
+        if (appWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID) {
+            finish()
+            return
+        }
+
+        binding.seekBar.progress = loadTitlePref(appWidgetId)
+    }
+
+    // Write the prefix to the SharedPreferences object for this widget
+    fun saveTitlePref(appWidgetId: Int, value: Int) {
+        sp.putInt(PREF_PREFIX_KEY + appWidgetId, value)
+    }
+
+    // Read the prefix from the SharedPreferences object for this widget.
+    // If there is no preference saved, get the default from a resource
+    private fun loadTitlePref(appWidgetId: Int): Int = sp.getInt(PREF_PREFIX_KEY + appWidgetId, 25)
+}
\ No newline at end of file
diff --git a/app/src/main/res/drawable-nodpi/widget_background.xml b/app/src/main/res/drawable-nodpi/widget_background.xml
deleted file mode 100644
index 3b269ba8be..0000000000
--- a/app/src/main/res/drawable-nodpi/widget_background.xml
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<shape xmlns:android="http://schemas.android.com/apk/res/android">
-    <solid android:color="#11000000" />
-
-    <corners android:radius="16dp" />
-</shape>
\ No newline at end of file
diff --git a/app/src/main/res/drawable-v21/app_widget_background.xml b/app/src/main/res/drawable-v21/widget_background.xml
similarity index 100%
rename from app/src/main/res/drawable-v21/app_widget_background.xml
rename to app/src/main/res/drawable-v21/widget_background.xml
diff --git a/app/src/main/res/drawable-v21/app_widget_inner_view_background.xml b/app/src/main/res/drawable-v21/widget_inner_view_background.xml
similarity index 100%
rename from app/src/main/res/drawable-v21/app_widget_inner_view_background.xml
rename to app/src/main/res/drawable-v21/widget_inner_view_background.xml
diff --git a/app/src/main/res/layout/widget_configure.xml b/app/src/main/res/layout/widget_configure.xml
new file mode 100644
index 0000000000..3709f04a23
--- /dev/null
+++ b/app/src/main/res/layout/widget_configure.xml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:orientation="vertical"
+    android:padding="16dp">
+
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginBottom="8dp"
+        android:labelFor="@id/seekBar"
+        android:text="@string/configure" />
+
+    <SeekBar
+        android:id="@+id/seekBar"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:max="256" />
+
+</LinearLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/widget_layout.xml b/app/src/main/res/layout/widget_layout.xml
index 5783ce2e77..7fa0fb9973 100644
--- a/app/src/main/res/layout/widget_layout.xml
+++ b/app/src/main/res/layout/widget_layout.xml
@@ -5,7 +5,7 @@
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical"
-    android:background="@drawable/widget_background"
+    android:background="@color/black"
     android:theme="@style/AppTheme.Launcher.AppWidgetContainer">
 
     <LinearLayout
diff --git a/app/src/main/res/values-v21/styles.xml b/app/src/main/res/values-v21/styles.xml
index e1eb8ded41..5a5a33c53d 100644
--- a/app/src/main/res/values-v21/styles.xml
+++ b/app/src/main/res/values-v21/styles.xml
@@ -1,11 +1,11 @@
 <resources>
     <style name="Widget.AndroidAPS.AppWidget.Container" parent="android:Widget">
         <item name="android:padding">?attr/appWidgetPadding</item>
-        <item name="android:background">@drawable/app_widget_background</item>
+        <item name="android:background">@drawable/widget_background</item>
     </style>
 
     <style name="Widget.AndroidAPS.AppWidget.InnerView" parent="android:Widget">
         <item name="android:padding">?attr/appWidgetPadding</item>
-        <item name="android:background">@drawable/app_widget_inner_view_background</item>
+        <item name="android:background">@drawable/widget_inner_view_background</item>
     </style>
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/values-v31/themes.xml b/app/src/main/res/values-v31/themes.xml
new file mode 100644
index 0000000000..70add0eacb
--- /dev/null
+++ b/app/src/main/res/values-v31/themes.xml
@@ -0,0 +1,6 @@
+<resources>
+    <style name="AppTheme.Launcher.AppWidgetContainerParent" parent="@android:style/Theme.DeviceDefault.DayNight">
+        <item name="appWidgetRadius">@android:dimen/system_app_widget_background_radius</item>
+        <item name="appWidgetInnerRadius">@android:dimen/system_app_widget_inner_radius</item>
+    </style>
+</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index cd1106a8a0..4b2fe0de22 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1209,4 +1209,5 @@
     <string name="show_loop_records">Show loop records</string>
     <string name="show_hide_records">Hide loop records</string>
     <string name="widget_description">AndroidAPS widget</string>
+    <string name="configure">Configure opacity</string>
 </resources>
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 985f488e58..74f76fe8cf 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,4 +1,5 @@
 <resources>
+
     <style name="AppTheme.Launcher.AppWidgetContainerParent" parent="@android:style/Theme.DeviceDefault">
         <!-- Radius of the outer bound of widgets to make the rounded corners -->
         <item name="appWidgetRadius">16dp</item>
@@ -9,8 +10,7 @@
         <item name="appWidgetInnerRadius">8dp</item>
     </style>
 
-    <style name="AppTheme.Launcher.AppWidgetContainer"
-        parent="AppTheme.Launcher.AppWidgetContainerParent">
+    <style name="AppTheme.Launcher.AppWidgetContainer" parent="AppTheme.Launcher.AppWidgetContainerParent">
         <!-- Apply padding to avoid the content of the widget colliding with the rounded corners -->
         <item name="appWidgetPadding">16dp</item>
 
@@ -20,4 +20,5 @@
         <item name="defaultTextColor">@color/white</item>
 
     </style>
+
 </resources>
\ No newline at end of file
diff --git a/app/src/main/res/xml/widget_info.xml b/app/src/main/res/xml/widget_info.xml
index 819118751e..801dca46d9 100644
--- a/app/src/main/res/xml/widget_info.xml
+++ b/app/src/main/res/xml/widget_info.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <appwidget-provider xmlns:android="http://schemas.android.com/apk/res/android"
+    android:configure="info.nightscout.androidaps.widget.WidgetConfigureActivity"
     android:description="@string/widget_description"
     android:initialKeyguardLayout="@layout/widget_layout"
     android:initialLayout="@layout/widget_layout"
@@ -8,4 +9,5 @@
     android:previewImage="@drawable/widget_preview"
     android:resizeMode="horizontal|vertical"
     android:updatePeriodMillis="86400000"
-    android:widgetCategory="home_screen" />
\ No newline at end of file
+    android:widgetCategory="home_screen"
+    android:widgetFeatures="reconfigurable|configuration_optional" />
\ No newline at end of file