Prompt: Generate detailed technical patterns for a short-sleeved men's shirt in WHITE fabric with MEDIUM BLUE AND WHITE CHECKS, featuring TWO FRONT POCKETS and without a Valencia collar. Provide precise dimensions and proportions for each component, including 2 back darts, a 3cm finished placket, and the collar button. Display the patterns on a white background, resembling blueprints, without any images of actual garments or human models