Use icon for tx saving success message

gui/qt/main_window.py

@@ -3151,7 +3151,7 @@ class ElectrumWindow(QMainWindow, MessageBoxMixin, PrintError):
             self.wallet.save_transactions(write=True)
             # need to update at least: history_list, utxo_list, address_list
             self.need_update.set()
-            self.show_message(_("Transaction saved successfully"))
+            self.msg_box(QPixmap(":icons/offline_tx.png"), None, _('Success'), _("Transaction saved successfully"))
             return True
 
 

gui/qt/util.py

@@ -202,7 +202,11 @@ class MessageBoxMixin(object):
     def msg_box(self, icon, parent, title, text, buttons=QMessageBox.Ok,
                 defaultButton=QMessageBox.NoButton):
         parent = parent or self.top_level_window()
-        d = QMessageBox(icon, title, str(text), buttons, parent)
+        if type(icon) is QPixmap:
+            d = QMessageBox(QMessageBox.Information, title, str(text), buttons, parent)
+            d.setIconPixmap(icon)
+        else:
+            d = QMessageBox(icon, title, str(text), buttons, parent)
         d.setWindowModality(Qt.WindowModal)
         d.setDefaultButton(defaultButton)
         return d.exec_()