Added settings to disable italic preview text

app/src/main/java/eu/faircode/email/AdapterMessage.java

@@ -181,6 +181,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
     private boolean subject_italic;
     private boolean flags;
     private boolean preview;
+    private boolean preview_italic;
     private boolean attachments_alt;
     private boolean contrast;
     private boolean monospaced;
@@ -719,7 +720,9 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
 
             // Message text preview
             tvPreview.setTextColor(contrast ? textColorPrimary : textColorSecondary);
-            tvPreview.setTypeface(monospaced ? Typeface.MONOSPACE : Typeface.DEFAULT, Typeface.ITALIC);
+            tvPreview.setTypeface(
+                    monospaced ? Typeface.MONOSPACE : Typeface.DEFAULT,
+                    preview_italic ? Typeface.ITALIC : Typeface.NORMAL);
             tvPreview.setText(message.preview);
             tvPreview.setVisibility(preview && !TextUtils.isEmpty(message.preview) ? View.VISIBLE : View.GONE);
 
@@ -2982,6 +2985,7 @@ public class AdapterMessage extends RecyclerView.Adapter<AdapterMessage.ViewHold
         this.subject_italic = prefs.getBoolean("subject_italic", true);
         this.flags = prefs.getBoolean("flags", true);
         this.preview = prefs.getBoolean("preview", false);
+        this.preview_italic = prefs.getBoolean("preview_italic", true);
         this.attachments_alt = prefs.getBoolean("attachments_alt", false);
         this.contrast = prefs.getBoolean("contrast", false);
         this.monospaced = prefs.getBoolean("monospaced", false);

app/src/main/java/eu/faircode/email/FragmentOptions.java

@@ -38,7 +38,7 @@ public class FragmentOptions extends FragmentBase {
     private PagerAdapter adapter;
 
     static String[] OPTIONS_RESTART = new String[]{
-            "startup", "date", "threading", "avatars", "generated_icons", "identicons", "circular", "name_email", "subject_italic", "flags", "preview",
+            "startup", "date", "threading", "avatars", "generated_icons", "identicons", "circular", "name_email", "subject_italic", "flags", "preview", "preview_italic",
             "addresses", "attachments_alt", "contrast", "monospaced", "inline_images", "contact_images", "all_images", "collapse_quotes", "autocontent", "actionbar",
             "autoscroll", "swipenav", "autoexpand", "autoclose", "onclose",
             "subscriptions", "debug",

app/src/main/java/eu/faircode/email/FragmentOptionsDisplay.java

@@ -54,6 +54,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
     private SwitchCompat swSubjectItalic;
     private SwitchCompat swFlags;
     private SwitchCompat swPreview;
+    private SwitchCompat swPreviewItalic;
     private SwitchCompat swAddresses;
     private SwitchCompat swAttachmentsAlt;
 
@@ -68,7 +69,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
 
     private final static String[] RESET_OPTIONS = new String[]{
             "theme", "startup", "date", "threading", "avatars", "generated_icons", "identicons", "circular", "name_email", "subject_italic",
-            "flags", "preview", "addresses", "attachments_alt",
+            "flags", "preview", "preview_italic", "addresses", "attachments_alt",
             "contrast", "monospaced", "inline_images", "contact_images", "all_images", "collapse_quotes", "autocontent", "actionbar",
     };
 
@@ -94,6 +95,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
         swSubjectItalic = view.findViewById(R.id.swSubjectItalic);
         swFlags = view.findViewById(R.id.swFlags);
         swPreview = view.findViewById(R.id.swPreview);
+        swPreviewItalic = view.findViewById(R.id.swPreviewItalic);
         swAddresses = view.findViewById(R.id.swAddresses);
         swAttachmentsAlt = view.findViewById(R.id.swAttachmentsAlt);
         swContrast = view.findViewById(R.id.swContrast);
@@ -203,6 +205,14 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
             @Override
             public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
                 prefs.edit().putBoolean("preview", checked).apply();
+                swPreviewItalic.setEnabled(checked);
+            }
+        });
+
+        swPreviewItalic.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
+            @Override
+            public void onCheckedChanged(CompoundButton compoundButton, boolean checked) {
+                prefs.edit().putBoolean("preview_italic", checked).apply();
             }
         });
 
@@ -342,6 +352,8 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
         swSubjectItalic.setChecked(prefs.getBoolean("subject_italic", true));
         swFlags.setChecked(prefs.getBoolean("flags", true));
         swPreview.setChecked(prefs.getBoolean("preview", false));
+        swPreviewItalic.setChecked(prefs.getBoolean("preview_italic", true));
+        swPreviewItalic.setEnabled(swPreview.isChecked());
         swAddresses.setChecked(prefs.getBoolean("addresses", false));
         swAttachmentsAlt.setChecked(prefs.getBoolean("attachments_alt", false));
         swContrast.setChecked(prefs.getBoolean("contrast", false));

app/src/main/res/layout/fragment_options_display.xml

@@ -204,6 +204,18 @@
                 app:layout_constraintStart_toStartOf="parent"
                 app:layout_constraintTop_toBottomOf="@id/swPreview" />
 
+            <androidx.appcompat.widget.SwitchCompat
+                android:id="@+id/swPreviewItalic"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="12dp"
+                android:checked="true"
+                android:text="@string/title_advanced_preview_italic"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@id/tvPreviewHint"
+                app:switchPadding="12dp" />
+
             <androidx.appcompat.widget.SwitchCompat
                 android:id="@+id/swAddresses"
                 android:layout_width="0dp"
@@ -212,7 +224,7 @@
                 android:text="@string/title_advanced_addresses"
                 app:layout_constraintEnd_toEndOf="parent"
                 app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toBottomOf="@id/tvPreviewHint"
+                app:layout_constraintTop_toBottomOf="@id/swPreviewItalic"
                 app:switchPadding="12dp" />
 
             <androidx.appcompat.widget.SwitchCompat