Issue #25313: Change the handling of new built-in text color themes to better
address the compatibility problem introduced by the addition of IDLE Dark.
Consistently use the revised idleConf.CurrentTheme everywhere in idlelib.
diff --git a/Lib/idlelib/EditorWindow.py b/Lib/idlelib/EditorWindow.py
index 5b4ed30..4680f5c 100644
--- a/Lib/idlelib/EditorWindow.py
+++ b/Lib/idlelib/EditorWindow.py
@@ -754,7 +754,7 @@
         # Called from self.filename_change_hook and from configDialog.py
         self._rmcolorizer()
         self._addcolorizer()
-        theme = idleConf.GetOption('main','Theme','name')
+        theme = idleConf.CurrentTheme()
         normal_colors = idleConf.GetHighlight(theme, 'normal')
         cursor_color = idleConf.GetHighlight(theme, 'cursor', fgBg='fg')
         select_colors = idleConf.GetHighlight(theme, 'hilite')