Disconnect's protecting list is unsuitable for tracking images

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

@@ -502,6 +502,7 @@ public class FragmentOptionsPrivacy extends FragmentBase implements SharedPrefer
             sb.append(value);
         }
         tvClientId.setText(sb);
+        swDisconnectImages.setVisibility(BuildConfig.DEBUG ? View.VISIBLE : View.GONE);
 
         PreferenceManager.getDefaultSharedPreferences(getContext()).registerOnSharedPreferenceChangeListener(this);
 

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

@@ -2186,7 +2186,7 @@ public class HtmlHelper {
 
     static void removeTrackingPixels(Context context, Document document) {
         SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
-        boolean disconnect_images = prefs.getBoolean("disconnect_images", false);
+        boolean disconnect_images = (prefs.getBoolean("disconnect_images", false) && BuildConfig.DEBUG);
 
         Drawable d = context.getDrawable(R.drawable.twotone_my_location_24);
         d.setTint(Helper.resolveColor(context, R.attr.colorWarning));