Shopify VAT & Homepage Revamp

I run www.orangeprint.ro on Shopify and use a custom-product app for personalized orders. I now need a round of improvements that touch both the catalog logic and the front-end experience.

First, VAT must appear for every stock and custom product as a separate line item—visible on the product page, in the cart, and through checkout. The custom-product app has to carry that logic too, so any price it generates automatically shows the VAT line without breaking the app workflow.

Next, I want a fresh image-gallery page that behaves like a full-width slider: swipe / arrow navigation, lazy-loading images, and theme-consistent styling so it feels native to the site.

The home page also needs a light makeover:
• Extend the main slider by three additional slides and ensure delivery & production times are called out prominently within that carousel.
• Create new sections or categories, replace outdated images and hero videos, and tighten up the copy across the page to keep the message clear and on-brand.

Everything should be done with clean Liquid, theme-compatible JavaScript (or a proven slider app), and without introducing performance drag. Once complete, I’ll test on desktop and mobile; payment is released when VAT displays correctly across all order flows and the new visual elements render smoothly on modern browsers.