This video builds on the regular ice-ray lattice study to explore the periodic and regular structure of ornamental designs. Using the same process as in the first video of the series, a shape rule is drawn to generate a design applied to an initial 4x5 grid of labeled cells organized to study patterns with alternative reflections as shown on the right side of the screen. The left side of the screen is the design space for drawing rules with the template as shown in red, the right side of the screen is the space for applying them to automate a design. A parallel application of the initial shape rule modified by a new spatial motif in the RHS produces new and unexpected results.