Fix DLC switch freeze: skip bulk cover scraping for themes/DLC

app/gui.py

@@ -2040,7 +2040,10 @@ class StorePage(QWidget):
         p = covers.cover_path(rid, system)
         if p.exists() and covers.file_is_image(p):
             item.setIcon(QIcon(_fit_pixmap(QPixmap(str(p)), self.ICON_W, self.ICON_H)))
-        elif rid not in self._cover_attempted:
+        elif system not in ("theme", "dlc") and rid not in self._cover_attempted:
+            # Themes and DLC have no meaningful box art in libretro/IGDB, and
+            # bulk-scraping hundreds of them on every switch to the DLC list
+            # saturates the network/CPU and makes the store unresponsive.
             self._cover_attempted.add(rid)
             self._cover_queue.append((row, {
                 "name": covers.plain_title(it["name"]) or it["name"],
@@ -2287,9 +2290,9 @@ class StorePage(QWidget):
             meta = dlg.selected_meta
             if meta:
                 title = meta.get("title") or None
-                info.save(str(rid), "games", meta, manual=True, title=title)
+                info.save(str(rid), system, meta, manual=True, title=title)
                 it["title_override"] = title or None
-            self._refresh_item_cover(it, rid, "games")
+            self._refresh_item_cover(it, rid, system)
 
     def _refresh_item_cover(self, it, rid, system):
         p = covers.cover_path(rid, system)