PSP Sync: show friendly theme/DLC names instead of raw filenames

app/psp.py

@@ -222,7 +222,7 @@ def _pkg_items(root):
 
 
 def _theme_items(root):
-    """Installed themes (``PSP/THEME/*.ptf``)."""
+    """Installed themes (``PSP/THEME/*.ptf``), named from the PTF header."""
     items = []
     theme_dir = root / "PSP" / "THEME"
     if theme_dir.is_dir():
@@ -231,8 +231,17 @@ def _theme_items(root):
         except OSError:
             return items
         for path in entries:
-            if path.is_file() and path.suffix.lower() == ".ptf":
-                items.append(_file_item(path, "theme"))
+            if not path.is_file() or path.suffix.lower() != ".ptf":
+                continue
+            item = _file_item(path, "theme")
+            try:
+                from . import theme as theme_mod
+                name = theme_mod.ptf_name(path)
+            except Exception:  # noqa: BLE001
+                name = ""
+            if name:
+                item["name"] = name
+            items.append(item)
     return items