---
title: "Concrete"
description: "Brutalist poster-style theme with offset shadows and square corners"
canonical_url: "https://docs.farming-labs.dev/docs/themes/concrete"
markdown_url: "https://docs.farming-labs.dev/docs/themes/concrete.md"
last_updated: "2026-10-17"
agent:
  tokenBudget: 750
---

<!-- @farming-labs/docs:generated
version=1
sourceKind=resolved-page
sourceHash=fnv1a64:f557580ee7f34db1
settingsHash=fnv1a64:b2106dff2d4f1f98
outputHash=fnv1a64:0ec98bd556d4357d
generatedAt=2026-08-20T10:20:45.748Z
-->
# Concrete

## Concrete task

Task: Concrete

Expected result: Brutalist poster-style theme with offset shadows and square corners

## Concrete verification



## Concrete agent guidance

Concrete pairs `concrete` from `@farming-labs/theme/concrete` with `theme: concrete()` and the global CSS import `@farming-labs/theme/concrete/css`.
The expected result is the `#ff5b31` primary, offset-shadow poster styling, `0px` corners, an 896px content width, and a 316px sidebar; this page documents `ui.colors.primary` and `ui.layout.sidebarWidth` overrides.
If only the config changes and the brutalist surfaces do not appear, restore the matching `/concrete/css` import rather than recreating its CSS.

## Sitemap

See the full [sitemap](/sitemap.md) for all pages.
Docs-scoped sitemap: [/docs/sitemap.md](/docs/sitemap.md).
Well-known sitemap: [/.well-known/sitemap.md](/.well-known/sitemap.md).