For agents · Nexus ReGen — Brand & Design System

00 · For agents

The whole brand, in one file.

Brand identity, voice rules, colour tokens and stable asset URLs — one Markdown file at /llms.txt, following the llmstxt.org convention. Hand it to an LLM, paste it into a system prompt, or fetch it from a tool.

The file

CANONICAL

brand.nexusregen.com/llms.txt

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Source

Same content as the file above.

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01 · For agents

Stable asset URLs

Public URLs for every brand asset. Reference these directly from product code, READMEs, third-party sites — anywhere the brand mark appears outside this microsite.

Hosting

Asset CDN

assets.nexusregen.com

Public R2 bucket (public-assets) fronted by Cloudflare. The canonical home for logos, favicons and the rest. Use these URLs from product code.

Brand site

brand.nexusregen.com

This microsite. Hosts the design-system docs and a generated /downloads/…tree mirroring the bucket. Use for browsing.

Primary logos

The everyday wordmark + emblem. Default to SVG.

Main logo (horizontal) · SVG

https://assets.nexusregen.com/nr/main/nr-logo-main.svg

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Main logo (horizontal) · PNG

https://assets.nexusregen.com/nr/main/nr-logo-main.png

Open ↗

Main logo (horizontal) · JPG

https://assets.nexusregen.com/nr/main/nr-logo-main.jpg

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Presentation logo · SVG

https://assets.nexusregen.com/nr/main/nr-logo-present.svg

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Presentation logo · PNG

https://assets.nexusregen.com/nr/main/nr-logo-present.png

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Presentation logo · JPG

https://assets.nexusregen.com/nr/main/nr-logo-present.jpg

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Main emblem · SVG

https://assets.nexusregen.com/nr/main/nr-emblem-main.svg

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Main emblem · PNG

https://assets.nexusregen.com/nr/main/nr-emblem-main.png

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Main emblem · JPG

https://assets.nexusregen.com/nr/main/nr-emblem-main.jpg

Open ↗

Main icon · SVG

https://assets.nexusregen.com/nr/main/nr-icon-main.svg

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Main icon · PNG

https://assets.nexusregen.com/nr/main/nr-icon-main.png

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Main icon · JPG

https://assets.nexusregen.com/nr/main/nr-icon-main.jpg

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Icon (with shadow) · SVG

https://assets.nexusregen.com/nr/main/nr-icon-shdw.svg

Open ↗

Icon (with shadow) · PNG

https://assets.nexusregen.com/nr/main/nr-icon-shdw.png

Open ↗

Icon (with shadow) · JPG

https://assets.nexusregen.com/nr/main/nr-icon-shdw.jpg

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Horizontal logotype

Five colourways. Pick by background.

Black · SVG

https://assets.nexusregen.com/nr/logotype/nr-logotype-black.svg

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Black · PNG

https://assets.nexusregen.com/nr/logotype/nr-logotype-black.png

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Black · JPG

https://assets.nexusregen.com/nr/logotype/nr-logotype-black.jpg

Open ↗

White · SVG

https://assets.nexusregen.com/nr/logotype/nr-logotype-white.svg

Open ↗

White · PNG

https://assets.nexusregen.com/nr/logotype/nr-logotype-white.png

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White · JPG

https://assets.nexusregen.com/nr/logotype/nr-logotype-white.jpg

Open ↗

Light · SVG

https://assets.nexusregen.com/nr/logotype/nr-logotype-light.svg

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Light · PNG

https://assets.nexusregen.com/nr/logotype/nr-logotype-light.png

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Light · JPG

https://assets.nexusregen.com/nr/logotype/nr-logotype-light.jpg

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Blue · SVG

https://assets.nexusregen.com/nr/logotype/nr-logotype-blue.svg

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Blue · PNG

https://assets.nexusregen.com/nr/logotype/nr-logotype-blue.png

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Blue · JPG

https://assets.nexusregen.com/nr/logotype/nr-logotype-blue.jpg

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Dual (blue + yellow) · SVG

https://assets.nexusregen.com/nr/logotype/nr-logotype-dual.svg

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Dual (blue + yellow) · PNG

https://assets.nexusregen.com/nr/logotype/nr-logotype-dual.png

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Dual (blue + yellow) · JPG

https://assets.nexusregen.com/nr/logotype/nr-logotype-dual.jpg

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Stacked logotype (vertical)

Squarer aspect. For tile-shaped placements.

Black · SVG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-black.svg

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Black · PNG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-black.png

Open ↗

Black · JPG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-black.jpg

Open ↗

Blue · SVG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-blue.svg

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Blue · PNG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-blue.png

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Blue · JPG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-blue.jpg

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White · SVG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-white.svg

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White · PNG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-white.png

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White · JPG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-white.jpg

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Yellow & white · SVG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-yellowwhite.svg

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Yellow & white · PNG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-yellowwhite.png

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Yellow & white · JPG

https://assets.nexusregen.com/nr/stackedlogotype/nr-stackedlogotype-yellowwhite.jpg

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Emblem variants

Mark-only ramp. For favicons, app icons, partner tiles.

Black · SVG

https://assets.nexusregen.com/nr/emblem/nr-emblem-black.svg

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Black · PNG

https://assets.nexusregen.com/nr/emblem/nr-emblem-black.png

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Black · JPG

https://assets.nexusregen.com/nr/emblem/nr-emblem-black.jpg

Open ↗

Blue · SVG

https://assets.nexusregen.com/nr/emblem/nr-emblem-blue.svg

Open ↗

Blue · PNG

https://assets.nexusregen.com/nr/emblem/nr-emblem-blue.png

Open ↗

Blue · JPG

https://assets.nexusregen.com/nr/emblem/nr-emblem-blue.jpg

Open ↗

White · SVG

https://assets.nexusregen.com/nr/emblem/nr-emblem-white.svg

Open ↗

White · PNG

https://assets.nexusregen.com/nr/emblem/nr-emblem-white.png

Open ↗

White · JPG

https://assets.nexusregen.com/nr/emblem/nr-emblem-white.jpg

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Yellow · SVG

https://assets.nexusregen.com/nr/emblem/nr-emblem-yellow.svg

Open ↗

Yellow · PNG

https://assets.nexusregen.com/nr/emblem/nr-emblem-yellow.png

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Yellow · JPG

https://assets.nexusregen.com/nr/emblem/nr-emblem-yellow.jpg

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Favicons & app icons

Pre-baked, 16/32/180/192/512 ready.

Favicon 1 · SVG

https://assets.nexusregen.com/nr/icon/favicon1.svg

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Favicon 1 · PNG

https://assets.nexusregen.com/nr/icon/favicon1.png

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Favicon 2 · SVG

https://assets.nexusregen.com/nr/icon/favicon2.svg

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Favicon 2 · PNG

https://assets.nexusregen.com/nr/icon/favicon2.png

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Favicon · filled · SVG

https://assets.nexusregen.com/nr/icon/favicon-filled.svg

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Favicon · filled · PNG

https://assets.nexusregen.com/nr/icon/favicon-filled.png

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Favicon · thick blue · SVG

https://assets.nexusregen.com/nr/icon/favicon-thick-blue.svg

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Favicon · thick blue · PNG

https://assets.nexusregen.com/nr/icon/favicon-thick-blue.png

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Favicon · thick light blue · SVG

https://assets.nexusregen.com/nr/icon/favicon-thick-lblue.svg

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Favicon · thick light blue · PNG

https://assets.nexusregen.com/nr/icon/favicon-thick-lblue.png

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Favicon · thick yellow · SVG

https://assets.nexusregen.com/nr/icon/favicon-thick-yellow.svg

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Favicon · thick yellow · PNG

https://assets.nexusregen.com/nr/icon/favicon-thick-yellow.png

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Icon · blue rounded · SVG

https://assets.nexusregen.com/nr/icon/nr-icon-blue-rounded.svg

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Icon · blue rounded · PNG

https://assets.nexusregen.com/nr/icon/nr-icon-blue-rounded.png

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Icon · blue square · SVG

https://assets.nexusregen.com/nr/icon/nr-icon-blue-sq.svg

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Icon · blue square · PNG

https://assets.nexusregen.com/nr/icon/nr-icon-blue-sq.png

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Icon · square arrow (yellow on blue) · SVG

https://assets.nexusregen.com/nr/icon/nr-icon-sq-arrow-yellow_on_blue.svg

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Icon · square arrow (yellow on blue) · PNG

https://assets.nexusregen.com/nr/icon/nr-icon-sq-arrow-yellow_on_blue.png

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Backgrounds

Branded background fills. Use for hero sections, decks, social.

Background 1 · SVG

https://assets.nexusregen.com/nr/bg/nr-bg-1.svg

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Background 1 · PNG

https://assets.nexusregen.com/nr/bg/nr-bg-1.png

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Background 1 · JPG

https://assets.nexusregen.com/nr/bg/nr-bg-1.jpg

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Legacy

Stable URL retained for backward compatibility.

Legacy logo · PNG

https://assets.nexusregen.com/logo.png

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02 · For agents

Recipes

Common patterns for using the brand reference from agents, tools and code.

System prompt

    You are working with the Nexus ReGen brand. The canonical brand reference is at https://brand.nexusregen.com/llms.txt — fetch and follow it. Tagline: "Materially smarter construction." Always use Penn Blue (#121541) and Aureolin (#F7EC33) as the primary palette. Never put yellow on light grey backgrounds; use navy instead.

curl

    curl -s https://brand.nexusregen.com/llms.txt

fetch (TypeScript)

    const brandSpec = await fetch("https://brand.nexusregen.com/llms.txt").then(r => r.text());

README badge (markdown)

    [![Powered by Nexus ReGen](https://img.shields.io/badge/Powered_by-Nexus_ReGen-121541?style=flat-square&labelColor=121541&color=F7EC33)](https://nexusregen.com)

03 · For agents

Identity & legacy tokens

The original identity and design-token export, retained as a W3C Design Tokens JSON document. Fetch it, parse it, and map it into your token pipeline.

These identity and legacy exports remain available for existing integrations. For new product UI, install the nx-ui theme and components. Do not load both themes together.

The file

IDENTITY & LEGACY TOKENS

brand.nexusregen.com/brand.json

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View raw ↗↓ Download

Quick consumers

One-liners for the most common pipelines.

JS / TS

const tokens = await fetch("https://brand.nexusregen.com/brand.json").then(r => r.json());

Fetch and consume directly. The file is plain JSON, no auth required.

Style Dictionary

bash

curl -o tokens/brand.json https://brand.nexusregen.com/brand.json

Drop into your tokens/ source folder and reference from style-dictionary.config.js. The W3C $value / $type shape is supported natively.

Tailwind v4

css

/* Skip brand.json entirely — pull the v4 @theme block directly */
@import "tailwindcss";
@import url("https://brand.nexusregen.com/tailwind-theme.css");

Tailwind v4 consumes the @theme block at /tailwind-theme.css. brand.json is for non-Tailwind pipelines.

Source

Same content as the file above.

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04 · For agents

Tailwind v4 theme & CSS vars

Two drop-in artefacts so any Nexus product picks up the brand correctly without re-keying tokens. Pick the Tailwind v4 @theme block for utility-class projects, or the raw :root CSS file for everything else.

These identity and legacy exports remain available for existing integrations. For new product UI, install the nx-ui theme and components. Do not load both themes together.

The Tailwind v4 theme

One @import, no config file. Tailwind v4 reads tokens from CSS.

TAILWIND v4 · @THEME

brand.nexusregen.com/tailwind-theme.css

Colours · fonts · radii · shadows · Loading…

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The CSS variables file

For projects that want tokens without Tailwind.

CSS CUSTOM PROPERTIES

brand.nexusregen.com/nexus-brand.css

--brand-* · --accent-* · --neutral-* · --r-* · --s-* · --shadow-* · Loading…

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Install

Three steps to brand-correct utility classes.

Save the theme into your project

    # from your repo root
curl -o src/styles/nexus-theme.css https://brand.nexusregen.com/tailwind-theme.css

Import it alongside Tailwind v4

    /* src/styles/global.css */
@import "tailwindcss";
@import "./nexus-theme.css";

Use the brand classes

    <button class="bg-brand-600 text-white shadow-md rounded-xl px-4 py-2 font-sans">
  Materially smarter.
</button>
<span class="text-accent-400">Aureolin highlight</span>

What's in it

Token categories shipped by the theme.

Colours

3 ramps — brand (12), accent (11), neutral (12)
4 supporting tones — dodger, signal, pine, humus
3 semantic tones — success, warning, error

Typography

font-sans → Inter (UI, body)
font-mono → JetBrains Mono (code, captions)

Radii

7 steps — xs (2px) → 3xl (24px)
rounded-full → 9999px (Tailwind default, untouched)

Shadows

7 steps — xs → 3xl, neutral-tinted Untitled-UI elevation
shadow-2xl for hero cards, shadow-xs for inputs

05 · For agents

Use nx-ui for new interfaces.

The shared registry owns UI components and semantic tokens. The brand handbook owns identity, voice, artwork and document templates.

One theme, both modes

Install the nx-ui theme and components using the library’s consumption guide. Import the theme after Tailwind. Use light-mode and dark-mode on the root element, and semantic component variants so primary actions become yellow in dark mode.

Open nx-ui installation guide ↗

Legacy shadcn export

The earlier shadcn/theme.css remains available for existing consumers. Its .dark strategy and token mappings are retained for compatibility. Do not combine it with nx-ui or use it for a new interface.