Bring black black theme

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

@@ -158,11 +158,15 @@ abstract class ActivityBase extends AppCompatActivity implements SharedPreferenc
                 case "grey_light":
                     setTheme(R.style.AppThemeGreySteelBlueLight);
                     break;
-                case "black":
                 case "grey_dark":
                     setTheme(R.style.AppThemeGreySteelBlueDark);
                     break;
 
+                // Black
+                case "black":
+                    setTheme(R.style.AppThemeBlack);
+                    break;
+
                 // System
                 case "system":
                 case "blue_orange_system":

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

@@ -716,8 +716,6 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
 
             final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());
             String theme = prefs.getString("theme", "light");
-            if ("black".equals(theme))
-                theme = "grey_dark";
 
             itten.setOnClickListener(new View.OnClickListener() {
                 @Override
@@ -767,7 +765,7 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
                             theme.startsWith("purple_yellow") ||
                             theme.startsWith("green_red"));
             boolean dark = theme.endsWith("dark");
-            boolean black = theme.endsWith("black");
+            boolean black = (!"black".equals(theme) && theme.endsWith("black"));
             boolean system = theme.endsWith("system");
 
             swReverse.setChecked(colored);
@@ -811,6 +809,10 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
                 case "grey_dark":
                     rgTheme.check(R.id.rbThemeGrey);
                     break;
+
+                case "black":
+                    rgTheme.check(R.id.rbThemeBlack);
+                    break;
             }
 
             return new AlertDialog.Builder(getContext())
@@ -859,6 +861,9 @@ public class FragmentOptionsDisplay extends FragmentBase implements SharedPrefer
                                         prefs.edit().putString("theme",
                                                 "grey" + (dark ? "_dark" : "_light")).apply();
                                     break;
+                                case R.id.rbThemeBlack:
+                                    prefs.edit().putString("theme", "black").apply();
+                                    break;
                             }
                         }
                     })

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

@@ -71,6 +71,14 @@
                 android:padding="6dp"
                 android:text="@string/title_setup_theme_grey"
                 android:textAppearance="@style/TextAppearance.AppCompat.Medium" />
+
+            <RadioButton
+                android:id="@+id/rbThemeBlack"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:padding="6dp"
+                android:text="@string/title_setup_theme_black"
+                android:textAppearance="@style/TextAppearance.AppCompat.Medium" />
         </RadioGroup>
 
         <androidx.appcompat.widget.SwitchCompat
@@ -98,7 +106,7 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_marginTop="12dp"
-            android:text="@string/title_setup_theme_black"
+            android:text="@string/title_setup_theme_black_background"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/swDark" />

app/src/main/res/values/styles.xml

@@ -325,7 +325,7 @@
 
     <!-- Other -->
 
-    <style name="_AppThemeBlack" parent="AppThemeBlueOrangeDark">
+    <style name="AppThemeBlack" parent="AppThemeBlueOrangeDark">
         <item name="themeName">black</item>
         <item name="colorPrimary">@color/blackPrimary</item>
         <item name="colorPrimaryDark">@color/blackPrimaryDark</item>