+
+ /**
+ * @brief The radius for the rounded corners of the visual.
+ * @details Name "cornerRadius", type Property::FLOAT or Prooperty::VECTOR4, animatable
+ * @note By default, it is Vector::ZERO.
+ * @note Only Property::Vector4 can be animated.
+ * @note Each radius will clamp internally to the half of smaller of the visual width and visual height.
+ * @note Their may exist some alias when you use it as ClippingMode::CLIP_CHILDREN.
+ * @note Radius value are used in clockwise order from top-left-corner to bottom-left-corner.
+ * When radius is Vector4(x, y, z, w)
+ * x y
+ * +--+
+ * | |
+ * +--+
+ * w z
+ */
+ CORNER_RADIUS = OPACITY + 2,
+
+ /**
+ * @brief Whether the corner radius value is relative (percentage [0.0f to 0.5f] of the visual size) or absolute (in world units).
+ * @details Name "cornerRadiusPolicy", type Property::INTEGER.
+ * @see Policy::Type
+ * @note By default, it is ABSOLUTE to the visual's size.
+ * If it it RELATIVE, the corner radius value is relative to the smaller of the visual width and visual height.
+ */
+ CORNER_RADIUS_POLICY = OPACITY + 3,
+
+ /**
+ * @brief The width for the borderline of the visual.
+ * @details Name "borderlineWidth", type Property::FLOAT, animatable
+ * @note Optional. Default value is 0.0f.
+ */
+ BORDERLINE_WIDTH = OPACITY + 4,
+
+ /**
+ * @brief The color for the borderline of the visual.
+ * @details Name "borderlineColor", type Property::VECTOR4, animatable
+ * @note Default value is Color::BLACK.
+ */
+ BORDERLINE_COLOR = OPACITY + 5,
+
+ /**
+ * @brief The offset from the visual borderline (recommend [-1.0f to 1.0f]).
+ * @details Name "borderlineOffset", type Property::FLOAT, animatable
+ * @note Default value is 0.0f.
+ * @note This value will clamp internally to [-1.0f to 1.0f].
+ */
+ BORDERLINE_OFFSET = OPACITY + 6,