Issue #24972: Inactive selection background now matches active selection

background, as selected by user, on all systems.  This also fixes a problem
with found items not highlighted on Windows.  Initial patch by Mark Roseman.
Fix replaces workaround with obscure but proper configuration option.

Lib/idlelib/EditorWindow.py

@@ -317,36 +317,6 @@ class EditorWindow(object):
         self.askinteger = tkSimpleDialog.askinteger
         self.showerror = tkMessageBox.showerror
 
-        self._highlight_workaround()  # Fix selection tags on Windows
-
-    def _highlight_workaround(self):
-        # On Windows, Tk removes painting of the selection
-        # tags which is different behavior than on Linux and Mac.
-        # See issue14146 for more information.
-        if not sys.platform.startswith('win'):
-            return
-
-        text = self.text
-        text.event_add("<<Highlight-FocusOut>>", "<FocusOut>")
-        text.event_add("<<Highlight-FocusIn>>", "<FocusIn>")
-        def highlight_fix(focus):
-            sel_range = text.tag_ranges("sel")
-            if sel_range:
-                if focus == 'out':
-                    HILITE_CONFIG = idleConf.GetHighlight(
-                            idleConf.CurrentTheme(), 'hilite')
-                    text.tag_config("sel_fix", HILITE_CONFIG)
-                    text.tag_raise("sel_fix")
-                    text.tag_add("sel_fix", *sel_range)
-                elif focus == 'in':
-                    text.tag_remove("sel_fix", "1.0", "end")
-
-        text.bind("<<Highlight-FocusOut>>",
-                lambda ev: highlight_fix("out"))
-        text.bind("<<Highlight-FocusIn>>",
-                lambda ev: highlight_fix("in"))
-
-
     def _filename_to_unicode(self, filename):
         """Return filename as BMP unicode so diplayable in Tk."""
         # Decode bytes to unicode.
@@ -785,6 +755,7 @@ class EditorWindow(object):
             insertbackground=cursor_color,
             selectforeground=select_colors['foreground'],
             selectbackground=select_colors['background'],
+            inactiveselectbackground=select_colors['background'],
             )
 
     IDENTCHARS = string.ascii_letters + string.digits + "_"