Add icons

config.py

@@ -38,9 +38,17 @@ _load_dotenv(Path(__file__).resolve().parent / ".env")
 #   heos_name    : the EXACT name HEOS reports for that player -- including
 #                  an In-Room Group like a stereo pair, which HEOS pairs at
 #                  the hardware level into one player, one pid, always.
-#   spotify_name : only needed if a room's Spotify Connect name differs
-#                  from heos_name -- GET /api/spotify/devices?account=account1 shows what
-#                  Spotify actually calls it. Defaults to heos_name.
+#   spotify_name    : only needed if a room's Spotify Connect name differs
+#                     from heos_name -- GET /api/spotify/devices?account=account1 shows what
+#                     Spotify actually calls it. Defaults to heos_name.
+#   in_room_group   : what heos_name actually names, when it is not a single
+#                     speaker -- one of IN_ROOM_GROUPS below. HEOS merges any
+#                     of these into one player, one pid, at the hardware
+#                     level, the same way it does a Stereo Pair -- so, same
+#                     as heos_name itself, this can only be set by hand, not
+#                     read back from HEOS. Defaults to "none".
+IN_ROOM_GROUPS = ("none", "stereo-pair", "lcr-fronts", "surround-sound-system", "subwoofer")
+
 _config_path = Path(__file__).resolve().parent / "config.json"
 try:
     _cfg = json.loads(_config_path.read_text())
@@ -52,6 +60,14 @@ except FileNotFoundError:
 
 TARGETS = _cfg["targets"]
 
+for _key, _target in TARGETS.items():
+    _group = _target.get("in_room_group", "none")
+    if _group not in IN_ROOM_GROUPS:
+        raise SystemExit(
+            f"{_config_path}: '{_key}' has in_room_group '{_group}', not one "
+            f"of {', '.join(IN_ROOM_GROUPS)}"
+        )
+
 # The AVR is always the group host: its content takes over every room
 # that joins, which is the whole point of the merge buttons.
 HOST_KEY = _cfg["host_key"]