added rainbow path support

common/params.cc

@@ -210,6 +210,7 @@ std::unordered_map<std::string, uint32_t> keys = {
 
     // dp
     {"dp_device_display_off_mode", PERSISTENT},
+    {"dp_ui_rainbow", PERSISTENT},
 };
 
 } // namespace

selfdrive/manager/manager.py

@@ -43,6 +43,7 @@ def manager_init() -> None:
 
     # dp
     ("dp_device_display_off_mode", "0"),
+    ("dp_ui_rainbow", "0"),
   ]
   if not PC:
     default_params.append(("LastUpdateTime", datetime.datetime.utcnow().isoformat().encode('utf8')))