---
title: "Themer"
description: "Swaps a selection between identically named style libraries, so one file can preview light, dark and brand themes."
canonical: "https://vibing.inc/library/themer-vg-1035"
category: "Figma, Assets & Media"
subcategory: "Figma plugins - design systems"
license: "open-source"
author: "Tom Lowry (@tomlowry)"
source: "https://github.com/thomas-lowry/themer"
---

# Themer
Swaps a selection between identically named style libraries, so one file can preview light, dark and brand themes.
## Facts
- Source: https://github.com/thomas-lowry/themer
- Category: Figma, Assets & Media / Figma plugins - design systems
- Author: Tom Lowry (@tomlowry)
- Licence: open-source
- Tags: figma-plugin, theming, styles, design-system
## Why it's a gem
Predates Figma variables and still the fastest way to demo multi-brand theming.
---
Listed in The Vibeary: https://vibing.inc/library/themer-vg-1035 · JSON: https://vibing.inc/api/public/library/gems/themer-vg-1035