extern const char * const BEVEL_SMOOTHNESS;
extern const char * const LIGHT_POSITION_UNIFORM_NAME;
+// Arc visual
+extern const char * const THICKNESS_NAME;
+extern const char * const START_ANGLE_NAME;
+extern const char * const SWEEP_ANGLE_NAME;
+extern const char * const CAP_NAME;
+
} // namespace Internal
} // namespace Toolkit