channels_list: use icon to tell apart channels from backups

electrum/gui/qt/channels_list.py

@@ -21,6 +21,7 @@ from electrum.gui import messages
 from .util import (MyTreeView, WindowModalDialog, Buttons, OkButton, CancelButton,
                    EnterButton, WaitingDialog, MONOSPACE_FONT, ColorScheme)
 from .amountedit import BTCAmountEdit, FreezableLineEdit
+from .util import read_QIcon
 
 
 ROLE_CHANNEL_ID = Qt.UserRole
@@ -296,6 +297,8 @@ class ChannelsList(MyTreeView):
             items[self.Columns.LOCAL_BALANCE].setFont(QFont(MONOSPACE_FONT))
             items[self.Columns.REMOTE_BALANCE].setFont(QFont(MONOSPACE_FONT))
             items[self.Columns.CAPACITY].setFont(QFont(MONOSPACE_FONT))
+            icon = "lightning" if not chan.is_backup() else "network"
+            items[self.Columns.SHORT_CHANID].setIcon(read_QIcon(icon))
             self._update_chan_frozen_bg(chan=chan, items=items)
             self.model().insertRow(0, items)
 

electrum/lnchannel.py

@@ -335,7 +335,6 @@ class AbstractChannel(Logger, ABC):
     def get_funding_address(self) -> str:
         pass
 
-    @abstractmethod
     def get_state_for_GUI(self) -> str:
         cs = self.get_state()
         if cs < ChannelState.CLOSED and self.force_close_detected:
@@ -479,10 +478,6 @@ class ChannelBackup(AbstractChannel):
     def is_initiator(self):
         return self.cb.is_initiator
 
-    def get_state_for_GUI(self):
-        cs_name = super().get_state_for_GUI()
-        return 'BACKUP' + ', '+ cs_name
-
     def get_oldest_unrevoked_ctn(self, who):
         return -1