Igor Sorocean contributed to the 3liz/lizmap-web-client repository by modernizing the frontend user interface, specifically updating the Progress Bar component to align with Bootstrap 5 standards. He refactored both map_edition.tpl and dataviz.js, ensuring consistent styling and improved maintainability across the application. Using HTML, JavaScript, and Bootstrap, Igor consolidated progress bar logic into a single, reusable UI component, which streamlines future updates and supports theming. This work addressed the company’s broader Bootstrap 5 modernization goals, enhancing visual consistency and user experience. The feature was delivered through a collaborative pull request process, reflecting a focused and maintainable engineering approach.