+const char wgt_config_string_readonly[] = "readonly";
+const char wgt_config_string_required[] = "required";
+const char wgt_config_string_short[] = "short";
+const char wgt_config_string_src[] = "src";
+const char wgt_config_string_type[] = "type";
+const char wgt_config_string_value[] = "value";
+const char wgt_config_string_version[] = "version";
+const char wgt_config_string_viewmodes[] = "viewmodes";
+const char wgt_config_string_widget[] = "widget";