diff --git a/app/src/main/java/eu/faircode/email/ActivityWidget.java b/app/src/main/java/eu/faircode/email/ActivityWidget.java
index 2838a5a889..6b32ca6d69 100644
--- a/app/src/main/java/eu/faircode/email/ActivityWidget.java
+++ b/app/src/main/java/eu/faircode/email/ActivityWidget.java
@@ -81,8 +81,12 @@ public class ActivityWidget extends ActivityBase {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
         long account = prefs.getLong("widget." + appWidgetId + ".account", -1L);
         boolean daynight = prefs.getBoolean("widget." + appWidgetId + ".daynight", false);
-        boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi", true);
-        int background = prefs.getInt("widget." + appWidgetId + ".background", Color.TRANSPARENT);
+        boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi",
+                Build.VERSION.SDK_INT < Build.VERSION_CODES.S);
+        int background = prefs.getInt("widget." + appWidgetId + ".background",
+                Build.VERSION.SDK_INT < Build.VERSION_CODES.S
+                        ? Color.TRANSPARENT
+                        : ColorUtils.setAlphaComponent(Color.BLACK, 127));
         int layout = prefs.getInt("widget." + appWidgetId + ".layout", 1 /* new */);
 
         daynight = daynight && (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S);
@@ -117,6 +121,8 @@ public class ActivityWidget extends ActivityBase {
         cbSemiTransparent.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                if (isChecked && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+                    btnColor.setColor(Color.TRANSPARENT);
                 setBackground();
             }
         });
@@ -124,6 +130,7 @@ public class ActivityWidget extends ActivityBase {
         btnColor.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
+                int color = btnColor.getColor();
                 int editTextColor = Helper.resolveColor(ActivityWidget.this, android.R.attr.editTextColor);
 
                 ColorPickerDialogBuilder
@@ -133,10 +140,14 @@ public class ActivityWidget extends ActivityBase {
                         .setColorEditTextColor(editTextColor)
                         .wheelType(ColorPickerView.WHEEL_TYPE.FLOWER)
                         .density(6)
-                        .lightnessSliderOnly()
+                        .initialColor(color == Color.TRANSPARENT ? Color.WHITE : color)
+                        .showLightnessSlider(true)
+                        .showAlphaSlider(Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
                         .setPositiveButton(android.R.string.ok, new ColorPickerClickListener() {
                             @Override
                             public void onClick(DialogInterface dialog, int selectedColor, Integer[] allColors) {
+                                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+                                    cbSemiTransparent.setChecked(false);
                                 btnColor.setColor(selectedColor);
                                 setBackground();
                             }
diff --git a/app/src/main/java/eu/faircode/email/ActivityWidgetSync.java b/app/src/main/java/eu/faircode/email/ActivityWidgetSync.java
index e81a1e25e0..e433df4abb 100644
--- a/app/src/main/java/eu/faircode/email/ActivityWidgetSync.java
+++ b/app/src/main/java/eu/faircode/email/ActivityWidgetSync.java
@@ -31,6 +31,7 @@ import android.widget.Button;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
 
+import androidx.core.graphics.ColorUtils;
 import androidx.preference.PreferenceManager;
 
 import com.flask.colorpicker.ColorPickerView;
@@ -60,8 +61,12 @@ public class ActivityWidgetSync extends ActivityBase {
 
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
         boolean daynight = prefs.getBoolean("widget." + appWidgetId + ".daynight", false);
-        boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi", true);
-        int background = prefs.getInt("widget." + appWidgetId + ".background", Color.TRANSPARENT);
+        boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi",
+                Build.VERSION.SDK_INT < Build.VERSION_CODES.S);
+        int background = prefs.getInt("widget." + appWidgetId + ".background",
+                Build.VERSION.SDK_INT < Build.VERSION_CODES.S
+                        ? Color.TRANSPARENT
+                        : ColorUtils.setAlphaComponent(Color.BLACK, 127));
 
         daynight = daynight && (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S);
 
@@ -85,9 +90,18 @@ public class ActivityWidgetSync extends ActivityBase {
             }
         });
 
+        cbSemiTransparent.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                if (isChecked && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+                    btnColor.setColor(Color.TRANSPARENT);
+            }
+        });
+
         btnColor.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
+                int color = btnColor.getColor();
                 int editTextColor = Helper.resolveColor(ActivityWidgetSync.this, android.R.attr.editTextColor);
 
                 ColorPickerDialogBuilder
@@ -97,10 +111,14 @@ public class ActivityWidgetSync extends ActivityBase {
                         .setColorEditTextColor(editTextColor)
                         .wheelType(ColorPickerView.WHEEL_TYPE.FLOWER)
                         .density(6)
-                        .lightnessSliderOnly()
+                        .initialColor(color == Color.TRANSPARENT ? Color.WHITE : color)
+                        .showLightnessSlider(true)
+                        .showAlphaSlider(Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
                         .setPositiveButton(android.R.string.ok, new ColorPickerClickListener() {
                             @Override
                             public void onClick(DialogInterface dialog, int selectedColor, Integer[] allColors) {
+                                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+                                    cbSemiTransparent.setChecked(false);
                                 btnColor.setColor(selectedColor);
                             }
                         })
diff --git a/app/src/main/java/eu/faircode/email/ActivityWidgetUnified.java b/app/src/main/java/eu/faircode/email/ActivityWidgetUnified.java
index 452584bfe1..de58e5f4da 100644
--- a/app/src/main/java/eu/faircode/email/ActivityWidgetUnified.java
+++ b/app/src/main/java/eu/faircode/email/ActivityWidgetUnified.java
@@ -40,6 +40,7 @@ import android.widget.TextView;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.constraintlayout.widget.Group;
+import androidx.core.graphics.ColorUtils;
 import androidx.preference.PreferenceManager;
 
 import com.flask.colorpicker.ColorPickerView;
@@ -99,8 +100,12 @@ public class ActivityWidgetUnified extends ActivityBase {
         boolean daynight = prefs.getBoolean("widget." + appWidgetId + ".daynight", false);
         boolean highlight = prefs.getBoolean("widget." + appWidgetId + ".highlight", false);
         int highlight_color = prefs.getInt("widget." + appWidgetId + ".highlight_color", Color.TRANSPARENT);
-        boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi", true);
-        int background = prefs.getInt("widget." + appWidgetId + ".background", Color.TRANSPARENT);
+        boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi",
+                Build.VERSION.SDK_INT < Build.VERSION_CODES.S);
+        int background = prefs.getInt("widget." + appWidgetId + ".background",
+                Build.VERSION.SDK_INT < Build.VERSION_CODES.S
+                        ? Color.TRANSPARENT
+                        : ColorUtils.setAlphaComponent(Color.BLACK, 127));
         boolean separators = prefs.getBoolean("widget." + appWidgetId + ".separators", true);
         int font = prefs.getInt("widget." + appWidgetId + ".font", 0);
         int padding = prefs.getInt("widget." + appWidgetId + ".padding", 0);
@@ -146,6 +151,14 @@ public class ActivityWidgetUnified extends ActivityBase {
             }
         });
 
+        cbSemiTransparent.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
+                if (isChecked && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+                    btnColor.setColor(Color.TRANSPARENT);
+            }
+        });
+
         cbHighlight.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
@@ -187,6 +200,7 @@ public class ActivityWidgetUnified extends ActivityBase {
         btnColor.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
+                int color = btnColor.getColor();
                 int editTextColor = Helper.resolveColor(ActivityWidgetUnified.this, android.R.attr.editTextColor);
 
                 ColorPickerDialogBuilder
@@ -196,10 +210,14 @@ public class ActivityWidgetUnified extends ActivityBase {
                         .setColorEditTextColor(editTextColor)
                         .wheelType(ColorPickerView.WHEEL_TYPE.FLOWER)
                         .density(6)
-                        .lightnessSliderOnly()
+                        .initialColor(color == Color.TRANSPARENT ? Color.WHITE : color)
+                        .showLightnessSlider(true)
+                        .showAlphaSlider(Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
                         .setPositiveButton(android.R.string.ok, new ColorPickerClickListener() {
                             @Override
                             public void onClick(DialogInterface dialog, int selectedColor, Integer[] allColors) {
+                                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S)
+                                    cbSemiTransparent.setChecked(false);
                                 btnColor.setColor(selectedColor);
                             }
                         })
diff --git a/app/src/main/java/eu/faircode/email/Widget.java b/app/src/main/java/eu/faircode/email/Widget.java
index f51b4ac4fe..ad70ab9236 100644
--- a/app/src/main/java/eu/faircode/email/Widget.java
+++ b/app/src/main/java/eu/faircode/email/Widget.java
@@ -60,8 +60,12 @@ public class Widget extends AppWidgetProvider {
                     String name = prefs.getString("widget." + appWidgetId + ".name", null);
                     long account = prefs.getLong("widget." + appWidgetId + ".account", -1L);
                     boolean daynight = prefs.getBoolean("widget." + appWidgetId + ".daynight", false);
-                    boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi", true);
-                    int background = prefs.getInt("widget." + appWidgetId + ".background", Color.TRANSPARENT);
+                    boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi",
+                            Build.VERSION.SDK_INT < Build.VERSION_CODES.S);
+                    int background = prefs.getInt("widget." + appWidgetId + ".background",
+                            Build.VERSION.SDK_INT < Build.VERSION_CODES.S
+                                    ? Color.TRANSPARENT
+                                    : ColorUtils.setAlphaComponent(Color.BLACK, 127));
                     int layout = prefs.getInt("widget." + appWidgetId + ".layout", 0);
                     int version = prefs.getInt("widget." + appWidgetId + ".version", 0);
 
diff --git a/app/src/main/java/eu/faircode/email/WidgetSync.java b/app/src/main/java/eu/faircode/email/WidgetSync.java
index ed747862da..084d6f0631 100644
--- a/app/src/main/java/eu/faircode/email/WidgetSync.java
+++ b/app/src/main/java/eu/faircode/email/WidgetSync.java
@@ -51,8 +51,12 @@ public class WidgetSync extends AppWidgetProvider {
 
             for (int appWidgetId : appWidgetIds) {
                 boolean daynight = prefs.getBoolean("widget." + appWidgetId + ".daynight", false);
-                boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi", true);
-                int background = prefs.getInt("widget." + appWidgetId + ".background", Color.TRANSPARENT);
+                boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi",
+                        Build.VERSION.SDK_INT < Build.VERSION_CODES.S);
+                int background = prefs.getInt("widget." + appWidgetId + ".background",
+                        Build.VERSION.SDK_INT < Build.VERSION_CODES.S
+                                ? Color.TRANSPARENT
+                                : ColorUtils.setAlphaComponent(Color.BLACK, 127));
                 int version = prefs.getInt("widget." + appWidgetId + ".version", 0);
 
                 if (version <= 1550)
diff --git a/app/src/main/java/eu/faircode/email/WidgetUnified.java b/app/src/main/java/eu/faircode/email/WidgetUnified.java
index 98803adeb5..2de34d7b3b 100644
--- a/app/src/main/java/eu/faircode/email/WidgetUnified.java
+++ b/app/src/main/java/eu/faircode/email/WidgetUnified.java
@@ -51,8 +51,12 @@ public class WidgetUnified extends AppWidgetProvider {
             long folder = prefs.getLong("widget." + appWidgetId + ".folder", -1L);
             String type = prefs.getString("widget." + appWidgetId + ".type", null);
             boolean daynight = prefs.getBoolean("widget." + appWidgetId + ".daynight", false);
-            boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi", true);
-            int background = prefs.getInt("widget." + appWidgetId + ".background", Color.TRANSPARENT);
+            boolean semi = prefs.getBoolean("widget." + appWidgetId + ".semi",
+                    Build.VERSION.SDK_INT < Build.VERSION_CODES.S);
+            int background = prefs.getInt("widget." + appWidgetId + ".background",
+                    Build.VERSION.SDK_INT < Build.VERSION_CODES.S
+                            ? Color.TRANSPARENT
+                            : ColorUtils.setAlphaComponent(Color.BLACK, 127));
             boolean separators = prefs.getBoolean("widget." + appWidgetId + ".separators", true);
             int font = prefs.getInt("widget." + appWidgetId + ".font", 0);
             int padding = prefs.getInt("widget." + appWidgetId + ".padding", 0);