---
title: "Slim lightbox designs with recessed borders - Sign Customiser Changelog"
description: "Changelog: Slim lightbox designs with recessed borders. Learn about the latest updates and improvements to Sign Customiser."
url: "https://www.signcustomiser.com/changelog/slim-lightbox-designs-with-recessed-borders/"
last_updated: "2026-10-10"
---

Sign Customiser now fully supports slim lightbox designs inside the customiser. If your lightbox signs only illuminate from one side — like a wall-mounted sign that doesn’t need a lit back panel — the 3D preview now accurately reflects this by showing the border trim on any disabled sides. You can also enable recessed borders for a cleaner, more modern look where the border sits flush with the face rather than overlapping it.

![Slim lightbox sign preview in the customiser](/_astro/slim-lightbox-preview.D9Ng8oQR_1p5lVr.webp)

## What’s Changed

- **Slim (single-sided) lightbox support**Lightbox signs with inactive sides are now officially supported in the customiser. Disabled sides display the border colour instead of a lit panel, giving customers an accurate preview of how the finished sign will look
- **Recessed border option**A new setting allows merchants to enable recessed borders on lightbox signs, removing the visible trim overlay from the face and back panels for a sleek, frameless appearance
- **Accurate 3D preview**The lightbox renderer correctly hides glow effects and images on inactive sides, so the preview matches the real product — whether it’s a single-sided wall sign or a fully illuminated hanging lightbox
- **Works across all lightbox shapes**Box, circle, and oval lightbox shapes all support inactive sides and recessed borders
- **Automatic border trim enforcement**The admin and customiser now ensure lightbox signs always have the required border trim colour assigned, preventing incomplete configurations from reaching your customers

- [feature](/changelog/tag/feature/)
- [fix](/changelog/tag/fix/)
- [lightbox](/changelog/tag/lightbox/)

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## Previousupdates

[View all updates](/changelog/)

- [April 5, 2026AI Sign Designer now supports Material Length pricingThe AI Sign Designer works with Material Length customisers, Channel Letter signs, and new demo templates make setup faster than ever.feature](/changelog/ai-sign-designer-now-supports-material-length-pricing/)
- [March 31, 2026RGB Colour Options for Channel Letter SignsChannel letter signs now support RGB multi-colour options with smooth animated colour transitions in the live preview.feature](/changelog/rgb-colour-options-for-channel-letter-signs/)
- [March 31, 2026Optional letter parts can default to noneMerchants can now configure optional colour selections to start unselected when the customiser loads, giving customers a cleaner starting point.feature](/changelog/optional-letter-parts-can-default-to-none/)
- [March 31, 2026Letter Rail Backboard Now AvailableAdd a letter rail backboard to your channel sign customisers. Individual letters mounted on a sleek rail, with automatic style inheritance.feature](/changelog/letter-rail-product-category/)

[View all updates](/changelog/)

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