-const std::string KEYNAME_ACTORS = "actors";
-const std::string KEYNAME_ENTRY_TRANSITION = "entryTransition";
-const std::string KEYNAME_EXIT_TRANSITION = "exitTransition";
-const std::string KEYNAME_INCLUDES = "includes";
-const std::string KEYNAME_INHERIT = "inherit";
-const std::string KEYNAME_MAPPINGS = "mappings";
-const std::string KEYNAME_NAME = "name";
-const std::string KEYNAME_SIGNALS = "signals";
-const std::string KEYNAME_STATES = "states";
-const std::string KEYNAME_STYLES = "styles";
-const std::string KEYNAME_TEMPLATES = "templates";
-const std::string KEYNAME_TRANSITIONS = "transitions";
-const std::string KEYNAME_TYPE = "type";
-const std::string KEYNAME_VISUALS = "visuals";
-
-const std::string PROPERTIES = "properties";
-const std::string ANIMATABLE_PROPERTIES = "animatableProperties";
+const char* KEYNAME_ACTORS = "actors";
+const char* KEYNAME_ENTRY_TRANSITION = "entryTransition";
+const char* KEYNAME_EXIT_TRANSITION = "exitTransition";
+const char* KEYNAME_INCLUDES = "includes";
+const char* KEYNAME_INHERIT = "inherit";
+const char* KEYNAME_MAPPINGS = "mappings";
+const char* KEYNAME_SIGNALS = "signals";
+const char* KEYNAME_STATES = "states";
+const char* KEYNAME_STYLES = "styles";
+const char* KEYNAME_TEMPLATES = "templates";
+const char* KEYNAME_TRANSITIONS = "transitions";
+const char* KEYNAME_TYPE = "type";
+const char* KEYNAME_VISUALS = "visuals";
+
+const char* PROPERTIES = "properties";
+const char* ANIMATABLE_PROPERTIES = "animatableProperties";