v1.9.18: revert GUI to v1.9.14 state — fix broken window display

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

gui/about_dialog.py

@@ -15,12 +15,10 @@ class AboutDialog(ctk.CTkToplevel):
         self.geometry("500x480")
         self.resizable(False, False)
         self.transient(master)
+        self.grab_set()
         self.focus_force()
         self.protocol("WM_DELETE_WINDOW", self._on_close)
 
-        self._master_ref = master
-        self._map_bind_id = master.bind("<Map>", self._on_parent_map, add="+")
-
         # ── Header ──
         ctk.CTkLabel(
             self, text=t("about_title"),
@@ -80,20 +78,9 @@ class AboutDialog(ctk.CTkToplevel):
             self, text=t("close"), width=120, command=self._on_close
         ).pack(pady=(10, 20))
 
-    def _on_parent_map(self, event=None):
-        """Restore dialog when parent is un-minimized."""
-        try:
-            if not self.winfo_exists():
-                return
-            self.deiconify()
-            self.lift()
-            self.focus_force()
-        except Exception:
-            pass
-
     def _on_close(self):
         try:
-            self._master_ref.unbind("<Map>", self._map_bind_id)
+            self.grab_release()
         except Exception:
             pass
         self.destroy()