The new digital design tool by Cultured Stone, a subsidiary of Westlake Corporation, is designed to make project planning easier for interior designers, architects, and consumers. This could potentially attract more customers to the company's products and services, thereby increasing its revenues. The news is highly relevant to Westlake Corporation as it directly pertains to one of its subsidiaries. The importance is moderate as the tool could potentially boost the company's revenues, but its actual impact would depend on its adoption rate. The confidence in the analysis is high based on the information provided in the news.