diff --git a/scripts/build_zh_locale.py b/scripts/build_zh_locale.py
index 1ed814f3..3520de26 100644
--- a/scripts/build_zh_locale.py
+++ b/scripts/build_zh_locale.py
@@ -28,6 +28,9 @@ LOCALE_CFG = "10002 936 zh\n"
 DEFAULT_NAMES = REPO / "data/zh_40250"
 FORMAT = re.compile(r"%(?:\([^)]*\))?[-+#0 ]*\d*(?:\.\d+)?[diouxXeEfFgGcrs%]")
 KEYED_FILES = ("locale_game.txt", "locale_interface.txt")
+# Image folders whose labels are drawn text (the character window's tabs and stat labels). Each is taken
+# from Longju as a whole: its .sub files carry their own coordinates into the folder's atlas.
+IMAGE_DIRS = ("ui/windows",)
 
 
 def keyed_lines(path: Path, encoding: str):
@@ -166,6 +169,15 @@ def build(en: Path, zh: Path, output: Path, client_base: Path,
         if (zh / filename).is_file():
             shutil.copyfile(zh / filename, locale_dir / filename)
 
+    for folder in IMAGE_DIRS:
+        english_files = {path.name for path in (en / folder).iterdir()}
+        chinese_files = {path.name for path in (zh / folder).iterdir()}
+        if not english_files <= chinese_files:
+            raise ValueError(f"{folder}: Longju lacks {sorted(english_files - chinese_files)}")
+        for name in sorted(english_files):
+            shutil.copyfile(zh / folder / name, locale_dir / folder / name)
+        report["files"][folder] = {"replaced_images": len(english_files)}
+
     if proto_tool is not None:
         if not proto_tool.is_file() or names_dir is None:
             raise ValueError("build locale_proto_patch and provide the Chinese name tables")
diff --git a/scripts/test_build_zh_locale.py b/scripts/test_build_zh_locale.py
index b187643f..faa1b233 100644
--- a/scripts/test_build_zh_locale.py
+++ b/scripts/test_build_zh_locale.py
@@ -26,6 +26,10 @@ class LocaleBuildTest(unittest.TestCase):
             (zh / "locale_interface.txt").write_bytes("ACCEPT\t确定\n".encode("gbk"))
             (en / "item_proto").write_bytes(b"40250-proto")
             (zh / "item_proto").write_bytes(b"old-proto")
+            for path, atlas in ((en, b"en-atlas"), (zh, b"zh-atlas")):
+                (path / "ui/windows").mkdir(parents=True)
+                (path / "ui/windows/windows.dds").write_bytes(atlas)
+            (zh / "ui/windows/zh_only.sub").write_bytes(b"sub")
             (client / "pack").mkdir()
             (client / "pack/Index").write_bytes(b"PACK\r\nlocale/de/\r\nlocale_de\r\nlocale/en/\r\nlocale_en\r\n")
             (client / "pack/locale_en.eix").write_bytes(b"en")
@@ -41,6 +45,8 @@ class LocaleBuildTest(unittest.TestCase):
             self.assertIn("BAD\t%s at %d\tSA", merged)
             self.assertIn("ONLY_EN\tFallback", merged)
             self.assertEqual((staged / "item_proto").read_bytes(), b"40250-proto")
+            self.assertEqual((staged / "ui/windows/windows.dds").read_bytes(), b"zh-atlas")
+            self.assertFalse((staged / "ui/windows/zh_only.sub").exists())
             self.assertEqual((output / "locale.cfg").read_text(), "10002 936 zh\n")
             self.assertEqual((output / "locale_zh.cfg").read_text(), "10002 936 zh\n")
             # A pack/ of its own: original packs linked, locale_zh packed from the staging dir and registered.