A theme for lighting shops, with a light switch in the header that turns every product photo from daylight to evening.

Filament is built for shops that sell pendants, chandeliers, wall lights, lamps and bulbs. Each product shows two photos taken with the same framing: one in daylight with the fitting off, and one in the evening with it lit. Shoppers press the switch in the header, on the hero photo, in the phone menu or on a product page, and the lamps come on one after another, spreading out from the switch, while the page itself moves to its evening colours. The switch is a keyboard-operable switch control, remembers each visitor's choice, and follows reduced-motion settings. On a product card, the bulb button or a hover lights just that one fitting.

Product pages put a dimmer and a 2700–4000 K bulb-colour slider on the lit photo, with a readout of brightness, colour temperature and lumens. When a product has finishes, the gallery switches to the matching daylight and evening photos for the chosen finish. Specifications such as dimensions, drop, cable, bulb, lumens, wattage, dimmability, IP rating, weight and installation come from product metafields, and a matching bulb can be offered as an add-on.

Room scenes on the home page and in collections carry hotspots that stay on the fittings when the photo is cropped. Tapping one opens a small card with the fitting lit, its specs, price and an add button, and on phones the same fittings are listed under the photo. A shop-the-room section can add a whole set to the bag.

Filament is made for selling across borders. A first-visit country suggestion, a country and language panel, footer selectors and a country landing page all use the store's own countries, currencies and languages. A wiring table in the theme settings lets the merchant say which mains voltage, lamp holder and plug each country uses, and the theme shows this in the announcement bar, on product pages, in the bag and on the country page.

The theme includes a bag drawer with free-delivery progress, collection pages with filters and sort, search, journal, contact form, account, sign-in, order tracking, saved items and a password page. It comes with three styles, Limewash, Lamplight and Porcelain, each colour scheme has its own daylight and evening colours, and storefront text is translated into English, German, Spanish, French and Italian.