Pixel Aperture Product System
A portable design language for agents: download the markdown first, then inspect the preview, tokens, and rules as needed.
Download DESIGN.md
Portable DESIGN.md source of truth for most agents and apps.
specification
philosophy
tokens
borders4 items
- accent width
- 2px
- character
- cool-gray functional borders with crisp inset focus rings and short stepped corner accents
- default width
- 1px
- style
- solid
colors12 items
motion3 items
- duration
- 160ms
- easing
- cubic-bezier(0.2, 0.8, 0.2, 1)
- philosophy
- fast product motion: lift by 2px, snap focus outlines, and reveal small pixel blocks without bounce or game-like animation
radii5 items
- full
- 9999px
- lg
- 18px
- md
- 10px
- none
- 0
- sm
- 6px
shadows3 items
- lg
- 0 30px 80px rgba(17, 24, 39, 0.14)
- md
- 0 18px 45px rgba(37, 87, 255, 0.10)
- sm
- 0 1px 2px rgba(17, 24, 39, 0.06)
spacing2 items
- base
- 8px
- scale
- 4, 8, 12, 16, 24, 32, 48, 64
surfaces3 items
- bg pattern
- none by default; isolated pixel motifs may appear inside icons or empty-state illustrations only
- card style
- 1px cool border, 18px radius, soft shadow, clipped pixel corner markers only where state changes
- treatment
- warm white canvas with raised white cards, small accent apertures, and no global pattern
typography8 items
- base size
- 16px
- body font
- Inter
- google fonts url
- https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap
- heading font
- Instrument Sans
- letter spacing
- -0.018em
- line height
- 1.5
- mono font
- IBM Plex Mono
- scale ratio
- 1.22
rules
Use a scene-first product workspace with a dominant work surface, a narrow context stack, and one compact status ribbon; never rely on equal generic dashboard cards.
Balanced density with generous exterior whitespace, compact metadata rows, and roomy editing panels for real product tasks.
Headlines are large, tight Instrument Sans; body copy is calm Inter; mono labels appear only for coordinates, token names, version numbers, and tiny status chips.
layout
mobile 375px, tablet 768px, desktop 1200px, wide 1440px
Twelve-column desktop shell with a 72px left tool dock, a fluid central canvas, and a 320px inspection panel that stacks below on tablet and mobile.
Large outer margins and white gutters create premium calm; tight spacing is reserved for metadata, chips, and pixel-accent clusters.
guidance
- Use one dominant bright accent per interaction and keep the other hues as small state notes.
- Make pixel influence visible in corners, terminals, icons, and small diagrams rather than full component geometry.
- Keep backgrounds white or warm neutral with no square grids and no default dotted texture.
- Choose real product scenes such as palette governance, release checks, or asset review where color carries meaning.
- Do not use rainbow sprawl, neon cyberpunk gradients, confetti, or arcade styling.
- Do not attach decorative colored side rails or left stripes to cards, rows, buttons, or panels.
- Do not turn every element blocky; preserve smooth radii and professional product typography.
- Do not use generic SaaS dashboard panels with three equal cards as the main composition.
katagami spec
# Pixel Aperture Product System ## Philosophy A white product interface language where bright accents behave like tiny calibrated apertures: restrained pixel-cut highlights reveal priority, state, and delight without becoming a retro game skin. Candidate directions compared internally were citrus-cobalt utility, violet-lime laboratory, and this cobalt/coral/saffron aperture system; the chosen direction wins because its split-warm accents create memorable product moments while cobalt maintains functional trust and accessibility. ### Values - white-space as the premium material - color accents assigned to meaning rather than garnish - minimal pixel influence through apertures, notches, icons, and quantized edges - clear product utility before illustration ### Anti-Values - full-rainbow palettes and arbitrary confetti - retro arcade, Minecraft, or blocky game theming - square-grid wallpaper and dotted background defaults - decorative side rails on cards, rows, buttons, or panels ### Visual Character - White and warm-neutral surfaces use 1px cool-gray borders, soft ambient shadows, and no repeated background texture or square grid. - Key actions and data states receive small 6px to 14px pixel-aperture corner blocks clipped from cobalt, coral, and saffron accents. - Cards use asymmetric header compositions with one large content region and two smaller utility modules instead of equal dashboard tiles. - Icons are line icons with one or two square-pixel terminals, keeping the UI professional while giving edges a quantized rhythm. - Focus and hover states shift via crisp inset outlines and short translate motion rather than glow, neon, or decorative stripes. ## Tokens ### Borders - **Accent Width**: 2px - **Character**: cool-gray functional borders with crisp inset focus rings and short stepped corner accents - **Default Width**: 1px - **Style**: solid ### Colors | Name | Value | |------|-------| | accent | `#FF3D7F` | | background | `#FBFAF7` | | border | `#DDE3EC` | | error | `#E02424` | | info | `#2F6BFF` | | muted | `#6B7280` | | primary | `#2557FF` | | secondary | `#FFB000` | | success | `#11A36A` | | surface | `#FFFFFF` | | text | `#111827` | | warning | `#C87900` | ### Motion - **Duration**: 160ms - **Easing**: cubic-bezier(0.2, 0.8, 0.2, 1) - **Philosophy**: fast product motion: lift by 2px, snap focus outlines, and reveal small pixel blocks without bounce or game-like animation ### Radii - **Full**: 9999px - **Lg**: 18px - **Md**: 10px - **None**: 0 - **Sm**: 6px ### Shadows - **Lg**: 0 30px 80px rgba(17, 24, 39, 0.14) - **Md**: 0 18px 45px rgba(37, 87, 255, 0.10) - **Sm**: 0 1px 2px rgba(17, 24, 39, 0.06) ### Spacing - **Base**: 8px - **Scale**: [4,8,12,16,24,32,48,64] ### Surfaces - **Bg Pattern**: none by default; isolated pixel motifs may appear inside icons or empty-state illustrations only - **Card Style**: 1px cool border, 18px radius, soft shadow, clipped pixel corner markers only where state changes - **Treatment**: warm white canvas with raised white cards, small accent apertures, and no global pattern ### Typography - **Base Size**: 16px - **Body Font**: Inter - **Google Fonts Url**: https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap - **Heading Font**: Instrument Sans - **Letter Spacing**: -0.018em - **Line Height**: 1.5 - **Mono Font**: IBM Plex Mono - **Scale Ratio**: 1.22 ## Rules ### Composition Use a scene-first product workspace with a dominant work surface, a narrow context stack, and one compact status ribbon; never rely on equal generic dashboard cards. ### Density Balanced density with generous exterior whitespace, compact metadata rows, and roomy editing panels for real product tasks. ### Hierarchy Headlines are large, tight Instrument Sans; body copy is calm Inter; mono labels appear only for coordinates, token names, version numbers, and tiny status chips. ### Signature Patterns - Pixel aperture corners: absolute-positioned 6px square accent blocks grouped in L-shapes on hero controls, charts, and selected objects. - Quantized focus rings: 2px cobalt outlines with a one-step square offset shadow that reads as precise UI feedback, not decoration. - Accent triad hierarchy: cobalt for primary action and selection, coral for creative attention, saffron for readiness and warnings, never all at equal volume. - Micro-illustration cells: tiny four-to-eight-square motifs embedded inside icons, swatches, and empty states while the surrounding UI stays smooth and white. ## Layout ### Breakpoints mobile 375px, tablet 768px, desktop 1200px, wide 1440px ### Grid Twelve-column desktop shell with a 72px left tool dock, a fluid central canvas, and a 320px inspection panel that stacks below on tablet and mobile. ### Whitespace Large outer margins and white gutters create premium calm; tight spacing is reserved for metadata, chips, and pixel-accent clusters. ## Guidance ### Do - Use one dominant bright accent per interaction and keep the other hues as small state notes. - Make pixel influence visible in corners, terminals, icons, and small diagrams rather than full component geometry. - Keep backgrounds white or warm neutral with no square grids and no default dotted texture. - Choose real product scenes such as palette governance, release checks, or asset review where color carries meaning. ### Don't - Do not use rainbow sprawl, neon cyberpunk gradients, confetti, or arcade styling. - Do not attach decorative colored side rails or left stripes to cards, rows, buttons, or panels. - Do not turn every element blocky; preserve smooth radii and professional product typography. - Do not use generic SaaS dashboard panels with three equal cards as the main composition.
DESIGN.md
---
version: "alpha"
name: "Pixel Aperture Product System"
description: "Agent-curated design language exported from Katagami as DESIGN.md."
colors:
accent: "#FF3D7F"
background: "#FBFAF7"
border: "#DDE3EC"
error: "#E02424"
info: "#2F6BFF"
muted: "#6B7280"
primary: "#2557FF"
secondary: "#FFB000"
success: "#11A36A"
surface: "#FFFFFF"
text: "#111827"
warning: "#C87900"
typography:
headline-lg:
fontFamily: "Instrument Sans"
fontSize: "1.816rem"
fontWeight: 700
lineHeight: 1.1
letterSpacing: "-0.018em"
headline-md:
fontFamily: "Instrument Sans"
fontSize: "1.488rem"
fontWeight: 600
lineHeight: 1.15
letterSpacing: "-0.018em"
body-md:
fontFamily: "Inter"
fontSize: "16px"
fontWeight: 400
lineHeight: 1.5
letterSpacing: "-0.018em"
label-md:
fontFamily: "IBM Plex Mono"
fontSize: "0.75rem"
fontWeight: 600
lineHeight: 1
letterSpacing: "0.08em"
rounded:
full: "9999px"
lg: "18px"
md: "10px"
none: "0px"
sm: "6px"
spacing:
base: "8px"
xs: "4px"
sm: "8px"
md: "12px"
lg: "16px"
xl: "24px"
2xl: "32px"
3xl: "48px"
4xl: "64px"
components:
color-reference-accent:
backgroundColor: "{colors.accent}"
color-reference-background:
backgroundColor: "{colors.background}"
color-reference-border:
backgroundColor: "{colors.border}"
color-reference-error:
backgroundColor: "{colors.error}"
color-reference-info:
backgroundColor: "{colors.info}"
color-reference-muted:
backgroundColor: "{colors.muted}"
color-reference-primary:
backgroundColor: "{colors.primary}"
color-reference-secondary:
backgroundColor: "{colors.secondary}"
color-reference-success:
backgroundColor: "{colors.success}"
color-reference-surface:
backgroundColor: "{colors.surface}"
color-reference-text:
backgroundColor: "{colors.text}"
color-reference-warning:
backgroundColor: "{colors.warning}"
button-primary:
backgroundColor: "{colors.primary}"
textColor: "#ffffff"
typography: "{typography.label-md}"
rounded: "{rounded.md}"
padding: "{spacing.md}"
card-surface:
backgroundColor: "{colors.surface}"
textColor: "{colors.text}"
rounded: "{rounded.md}"
padding: "{spacing.md}"
input-default:
backgroundColor: "{colors.surface}"
textColor: "{colors.text}"
rounded: "{rounded.md}"
height: "44px"
---
# Pixel Aperture Product System
## Overview
A white product interface language where bright accents behave like tiny calibrated apertures: restrained pixel-cut highlights reveal priority, state, and delight without becoming a retro game skin. Candidate directions compared internally were citrus-cobalt utility, violet-lime laboratory, and this cobalt/coral/saffron aperture system; the chosen direction wins because its split-warm accents create memorable product moments while cobalt maintains functional trust and accessibility.
### Values
- white-space as the premium material
- color accents assigned to meaning rather than garnish
- minimal pixel influence through apertures, notches, icons, and quantized edges
- clear product utility before illustration
### Anti-Values
- full-rainbow palettes and arbitrary confetti
- retro arcade, Minecraft, or blocky game theming
- square-grid wallpaper and dotted background defaults
- decorative side rails on cards, rows, buttons, or panels
### Visual Character
- White and warm-neutral surfaces use 1px cool-gray borders, soft ambient shadows, and no repeated background texture or square grid.
- Key actions and data states receive small 6px to 14px pixel-aperture corner blocks clipped from cobalt, coral, and saffron accents.
- Cards use asymmetric header compositions with one large content region and two smaller utility modules instead of equal dashboard tiles.
- Icons are line icons with one or two square-pixel terminals, keeping the UI professional while giving edges a quantized rhythm.
- Focus and hover states shift via crisp inset outlines and short translate motion rather than glow, neon, or decorative stripes.
## Colors
Use the YAML color tokens as the normative palette. The prose below names the roles agents should preserve when generating UI.
| Token | Value |
|-------|-------|
| accent | `#FF3D7F` |
| background | `#FBFAF7` |
| border | `#DDE3EC` |
| error | `#E02424` |
| info | `#2F6BFF` |
| muted | `#6B7280` |
| primary | `#2557FF` |
| secondary | `#FFB000` |
| success | `#11A36A` |
| surface | `#FFFFFF` |
| text | `#111827` |
| warning | `#C87900` |
## Typography
- **Headline-Lg**: Instrument Sans, 1.816rem, weight 700, line-height 1.1.
- **Headline-Md**: Instrument Sans, 1.488rem, weight 600, line-height 1.15.
- **Body-Md**: Inter, 16px, weight 400, line-height 1.5.
- **Label-Md**: IBM Plex Mono, 0.75rem, weight 600, line-height 1.
## Layout
### Spacing Tokens
- **Base**: `8px`
- **Xs**: `4px`
- **Sm**: `8px`
- **Md**: `12px`
- **Lg**: `16px`
- **Xl**: `24px`
- **2xl**: `32px`
- **3xl**: `48px`
- **4xl**: `64px`
### Breakpoints
mobile 375px, tablet 768px, desktop 1200px, wide 1440px
### Grid
Twelve-column desktop shell with a 72px left tool dock, a fluid central canvas, and a 320px inspection panel that stacks below on tablet and mobile.
### Whitespace
Large outer margins and white gutters create premium calm; tight spacing is reserved for metadata, chips, and pixel-accent clusters.
## Elevation & Depth
### Shadows
- **Lg**: 0 30px 80px rgba(17, 24, 39, 0.14)
- **Md**: 0 18px 45px rgba(37, 87, 255, 0.10)
- **Sm**: 0 1px 2px rgba(17, 24, 39, 0.06)
## Shapes
### Rounded
- **Full**: `9999px`
- **Lg**: `18px`
- **Md**: `10px`
- **None**: `0px`
- **Sm**: `6px`
### Surfaces
- **Bg Pattern**: none by default; isolated pixel motifs may appear inside icons or empty-state illustrations only
- **Card Style**: 1px cool border, 18px radius, soft shadow, clipped pixel corner markers only where state changes
- **Treatment**: warm white canvas with raised white cards, small accent apertures, and no global pattern
### Borders
- **Accent Width**: 2px
- **Character**: cool-gray functional borders with crisp inset focus rings and short stepped corner accents
- **Default Width**: 1px
- **Style**: solid
## Components
### Composition
Use a scene-first product workspace with a dominant work surface, a narrow context stack, and one compact status ribbon; never rely on equal generic dashboard cards.
### Density
Balanced density with generous exterior whitespace, compact metadata rows, and roomy editing panels for real product tasks.
### Hierarchy
Headlines are large, tight Instrument Sans; body copy is calm Inter; mono labels appear only for coordinates, token names, version numbers, and tiny status chips.
### Signature Patterns
- Pixel aperture corners: absolute-positioned 6px square accent blocks grouped in L-shapes on hero controls, charts, and selected objects.
- Quantized focus rings: 2px cobalt outlines with a one-step square offset shadow that reads as precise UI feedback, not decoration.
- Accent triad hierarchy: cobalt for primary action and selection, coral for creative attention, saffron for readiness and warnings, never all at equal volume.
- Micro-illustration cells: tiny four-to-eight-square motifs embedded inside icons, swatches, and empty states while the surrounding UI stays smooth and white.
## shadcn/ui Usage
When the target app uses shadcn/ui, copy DESIGN.md with shadcn instead of the plain DESIGN.md. It contains the same Katagami design-language source plus the shadcn/ui primitives, imports, theme variables, component recipes, and preview-shot guidance.
DESIGN.md with shadcn: `/language/en-019e4685-7cd5-70d2-b718-7bd8bf6e313a/DESIGN.with-shadcn.md`.
The shadcn page also exposes optional machine-readable files for automation, but the human-facing handoff is DESIGN.md with shadcn.
Install recommended primitives with `npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table`.
Use these primitives in shadcn apps:
- button
- card
- input
- textarea
- select
- dialog
- sheet
- tabs
- badge
- separator
- checkbox
- switch
- slider
- tooltip
- dropdown-menu
- table
Implementation rule for agents: import shadcn primitives from `@/components/ui/*`, apply the generated CSS variables first, then compose the language-specific recipes from the companion MD. Katagami remains the source of truth; shadcn names are the implementation surface.
## Do's and Don'ts
- Do Use one dominant bright accent per interaction and keep the other hues as small state notes.
- Do Make pixel influence visible in corners, terminals, icons, and small diagrams rather than full component geometry.
- Do Keep backgrounds white or warm neutral with no square grids and no default dotted texture.
- Do Choose real product scenes such as palette governance, release checks, or asset review where color carries meaning.
- Don't Do not use rainbow sprawl, neon cyberpunk gradients, confetti, or arcade styling.
- Don't Do not attach decorative colored side rails or left stripes to cards, rows, buttons, or panels.
- Don't Do not turn every element blocky; preserve smooth radii and professional product typography.
- Don't Do not use generic SaaS dashboard panels with three equal cards as the main composition.
shadcn/ui theme
```json
{
"$schema": "https://ui.shadcn.com/schema/registry-item.json",
"name": "pixel-aperture-product-system",
"type": "registry:theme",
"title": "Pixel Aperture Product System shadcn Theme",
"cssVars": {
"theme": {},
"light": {
"background": "#FBFAF7",
"foreground": "#111827",
"card": "#FFFFFF",
"card-foreground": "#111827",
"popover": "#FFFFFF",
"popover-foreground": "#111827",
"primary": "#2557FF",
"primary-foreground": "#ffffff",
"secondary": "#FFB000",
"secondary-foreground": "#ffffff",
"muted": "#6B7280",
"muted-foreground": "#111827",
"accent": "#FF3D7F",
"accent-foreground": "#ffffff",
"destructive": "#E02424",
"border": "#DDE3EC",
"input": "#DDE3EC",
"ring": "#FF3D7F",
"chart-1": "#2557FF",
"chart-2": "#FFB000",
"chart-3": "#FF3D7F",
"chart-4": "#11A36A",
"chart-5": "#C87900",
"sidebar": "#FFFFFF",
"sidebar-foreground": "#111827",
"sidebar-primary": "#2557FF",
"sidebar-primary-foreground": "#ffffff",
"sidebar-accent": "#2F6BFF",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#DDE3EC",
"sidebar-ring": "#FF3D7F",
"radius": "10px"
},
"dark": {
"background": "#0f1115",
"foreground": "#f8fafc",
"card": "#181b22",
"card-foreground": "#f8fafc",
"popover": "#181b22",
"popover-foreground": "#f8fafc",
"primary": "#2557FF",
"primary-foreground": "#ffffff",
"secondary": "#252a33",
"secondary-foreground": "#f8fafc",
"muted": "#252a33",
"muted-foreground": "#a1a1aa",
"accent": "#FF3D7F",
"accent-foreground": "#ffffff",
"destructive": "#E02424",
"border": "#303642",
"input": "#303642",
"ring": "#FF3D7F",
"chart-1": "#2557FF",
"chart-2": "#FFB000",
"chart-3": "#FF3D7F",
"chart-4": "#11A36A",
"chart-5": "#C87900",
"sidebar": "#181b22",
"sidebar-foreground": "#f8fafc",
"sidebar-primary": "#2557FF",
"sidebar-primary-foreground": "#ffffff",
"sidebar-accent": "#FF3D7F",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#303642",
"sidebar-ring": "#FF3D7F",
"radius": "10px"
}
},
"meta": {
"source": "katagami",
"languageId": "en-019e4685-7cd5-70d2-b718-7bd8bf6e313a",
"slug": "pixel-aperture-product-system",
"componentManifest": [
"button",
"card",
"input",
"textarea",
"select",
"dialog",
"sheet",
"tabs",
"badge",
"separator",
"checkbox",
"switch",
"slider",
"tooltip",
"dropdown-menu",
"table"
],
"installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
"nativeTokenNames": {
"borders": [
"accent_width",
"character",
"default_width",
"style"
],
"colors": [
"accent",
"background",
"border",
"error",
"info",
"muted",
"primary",
"secondary",
"success",
"surface",
"text",
"warning"
],
"motion": [
"duration",
"easing",
"philosophy"
],
"radii": [
"full",
"lg",
"md",
"none",
"sm"
],
"shadows": [
"lg",
"md",
"sm"
],
"spacing": [
"base",
"scale"
],
"surfaces": [
"bg_pattern",
"card_style",
"treatment"
],
"typography": [
"base_size",
"body_font",
"google_fonts_url",
"heading_font",
"letter_spacing",
"line_height",
"mono_font",
"scale_ratio"
]
}
}
}
```embodiments
at a glance
Typography
The quick brown fox jumps
The quick brown fox jumps
The quick brown fox jumps
The quick brown fox jumps
Components
Components rendered with this language’s tokens — colors, type, and rounded corners as specified.
Spacing
- base8px
- xs4px
- sm8px
- md12px
- lg16px
- xl24px
- 2xl32px
- 3xl48px
- 4xl64px
Shape
implementation kit
DESIGN.md with shadcn
Copy this when the target app uses shadcn/ui. It packages the Katagami DESIGN.md context with the install list, theme variables, component recipes, preview-shot contract, and starter TSX in one Markdown companion.
advanced implementation filesoptional machine-readable theme, CSS, TSX starter, recipes, and preview contract
npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table:root {
--background: #FBFAF7;
--foreground: #111827;
--card: #FFFFFF;
--card-foreground: #111827;
--popover: #FFFFFF;
--popover-foreground: #111827;
--primary: #2557FF;
--primary-foreground: #ffffff;
--secondary: #FFB000;
--secondary-foreground: #ffffff;
--muted: #6B7280;
--muted-foreground: #111827;
--accent: #FF3D7F;
--accent-foreground: #ffffff;
--destructive: #E02424;
--border: #DDE3EC;
--input: #DDE3EC;
--ring: #FF3D7F;
--chart-1: #2557FF;
--chart-2: #FFB000;
--chart-3: #FF3D7F;
--chart-4: #11A36A;
--chart-5: #C87900;
--sidebar: #FFFFFF;
--sidebar-foreground: #111827;
--sidebar-primary: #2557FF;
--sidebar-primary-foreground: #ffffff;
--sidebar-accent: #2F6BFF;
--sidebar-accent-foreground: #ffffff;
--sidebar-border: #DDE3EC;
--sidebar-ring: #FF3D7F;
--radius: 10px;
}
.dark {
--background: #0f1115;
--foreground: #f8fafc;
--card: #181b22;
--card-foreground: #f8fafc;
--popover: #181b22;
--popover-foreground: #f8fafc;
--primary: #2557FF;
--primary-foreground: #ffffff;
--secondary: #252a33;
--secondary-foreground: #f8fafc;
--muted: #252a33;
--muted-foreground: #a1a1aa;
--accent: #FF3D7F;
--accent-foreground: #ffffff;
--destructive: #E02424;
--border: #303642;
--input: #303642;
--ring: #FF3D7F;
--chart-1: #2557FF;
--chart-2: #FFB000;
--chart-3: #FF3D7F;
--chart-4: #11A36A;
--chart-5: #C87900;
--sidebar: #181b22;
--sidebar-foreground: #f8fafc;
--sidebar-primary: #2557FF;
--sidebar-primary-foreground: #ffffff;
--sidebar-accent: #FF3D7F;
--sidebar-accent-foreground: #ffffff;
--sidebar-border: #303642;
--sidebar-ring: #FF3D7F;
--radius: 10px;
}
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import {
Card,
CardContent,
CardDescription,
CardFooter,
CardHeader,
CardTitle,
} from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
export function PixelApertureProductSystemShadcnKit() {
return (
<section className="grid gap-4 rounded-[var(--radius)] border bg-background p-4 text-foreground">
<div className="flex items-start justify-between gap-4">
<div>
<Badge variant="outline">shadcn/ui</Badge>
<h2 className="mt-3 text-2xl font-semibold tracking-tight">Pixel Aperture Product System</h2>
<p className="mt-1 max-w-xl text-sm text-muted-foreground">
Use the Katagami registry theme, then compose these shadcn primitives
with the language-specific component recipes.
</p>
</div>
<Button>Apply theme</Button>
</div>
<Tabs defaultValue="components">
<TabsList>
<TabsTrigger value="components">Components</TabsTrigger>
<TabsTrigger value="states">States</TabsTrigger>
<TabsTrigger value="export">Export</TabsTrigger>
</TabsList>
</Tabs>
<Card>
<CardHeader>
<CardTitle>Component recipe</CardTitle>
<CardDescription>
Replace this starter content with the agent-authored product scene
from components.md and preview-shots.json.
</CardDescription>
</CardHeader>
<CardContent className="grid gap-3 sm:grid-cols-[1fr_auto]">
<Input defaultValue="Tokenized shadcn surface" aria-label="Recipe name" />
<Button variant="secondary">Preview state</Button>
</CardContent>
<CardFooter className="justify-between">
<Badge>Ready</Badge>
<Button variant="outline">Copy recipe</Button>
</CardFooter>
</Card>
</section>
);
}
{
"$schema": "https://ui.shadcn.com/schema/registry-item.json",
"cssVars": {
"dark": {
"accent": "#FF3D7F",
"accent-foreground": "#ffffff",
"background": "#0f1115",
"border": "#303642",
"card": "#181b22",
"card-foreground": "#f8fafc",
"chart-1": "#2557FF",
"chart-2": "#FFB000",
"chart-3": "#FF3D7F",
"chart-4": "#11A36A",
"chart-5": "#C87900",
"destructive": "#E02424",
"foreground": "#f8fafc",
"input": "#303642",
"muted": "#252a33",
"muted-foreground": "#a1a1aa",
"popover": "#181b22",
"popover-foreground": "#f8fafc",
"primary": "#2557FF",
"primary-foreground": "#ffffff",
"radius": "10px",
"ring": "#FF3D7F",
"secondary": "#252a33",
"secondary-foreground": "#f8fafc",
"sidebar": "#181b22",
"sidebar-accent": "#FF3D7F",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#303642",
"sidebar-foreground": "#f8fafc",
"sidebar-primary": "#2557FF",
"sidebar-primary-foreground": "#ffffff",
"sidebar-ring": "#FF3D7F"
},
"light": {
"accent": "#FF3D7F",
"accent-foreground": "#ffffff",
"background": "#FBFAF7",
"border": "#DDE3EC",
"card": "#FFFFFF",
"card-foreground": "#111827",
"chart-1": "#2557FF",
"chart-2": "#FFB000",
"chart-3": "#FF3D7F",
"chart-4": "#11A36A",
"chart-5": "#C87900",
"destructive": "#E02424",
"foreground": "#111827",
"input": "#DDE3EC",
"muted": "#6B7280",
"muted-foreground": "#111827",
"popover": "#FFFFFF",
"popover-foreground": "#111827",
"primary": "#2557FF",
"primary-foreground": "#ffffff",
"radius": "10px",
"ring": "#FF3D7F",
"secondary": "#FFB000",
"secondary-foreground": "#ffffff",
"sidebar": "#FFFFFF",
"sidebar-accent": "#2F6BFF",
"sidebar-accent-foreground": "#ffffff",
"sidebar-border": "#DDE3EC",
"sidebar-foreground": "#111827",
"sidebar-primary": "#2557FF",
"sidebar-primary-foreground": "#ffffff",
"sidebar-ring": "#FF3D7F"
},
"theme": {}
},
"meta": {
"componentManifest": [
"button",
"card",
"input",
"textarea",
"select",
"dialog",
"sheet",
"tabs",
"badge",
"separator",
"checkbox",
"switch",
"slider",
"tooltip",
"dropdown-menu",
"table"
],
"installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
"languageId": "en-019e4685-7cd5-70d2-b718-7bd8bf6e313a",
"nativeTokenNames": {
"borders": [
"accent_width",
"character",
"default_width",
"style"
],
"colors": [
"accent",
"background",
"border",
"error",
"info",
"muted",
"primary",
"secondary",
"success",
"surface",
"text",
"warning"
],
"motion": [
"duration",
"easing",
"philosophy"
],
"radii": [
"full",
"lg",
"md",
"none",
"sm"
],
"shadows": [
"lg",
"md",
"sm"
],
"spacing": [
"base",
"scale"
],
"surfaces": [
"bg_pattern",
"card_style",
"treatment"
],
"typography": [
"base_size",
"body_font",
"google_fonts_url",
"heading_font",
"letter_spacing",
"line_height",
"mono_font",
"scale_ratio"
]
},
"slug": "pixel-aperture-product-system",
"source": "katagami"
},
"name": "pixel-aperture-product-system",
"title": "Pixel Aperture Product System shadcn Theme",
"type": "registry:theme"
}
# Pixel Aperture Product System shadcn/ui Components
Artifact: `component-recipes-v1`
Author: `katagami-ui-projection`
Language ID: `en-019e4685-7cd5-70d2-b718-7bd8bf6e313a`
Slug: `pixel-aperture-product-system`
## Intent
A white product interface language where bright accents behave like tiny calibrated apertures: restrained pixel-cut highlights reveal priority, state, and delight without becoming a retro game skin. Candidate directions compared internally were citrus-cobalt utility, violet-lime laboratory, and this cobalt/coral/saffron aperture system; the chosen direction wins because its split-warm accents create memorable product moments while cobalt maintains functional trust and accessibility.
## Required primitives
- button
- card
- input
- textarea
- select
- dialog
- sheet
- tabs
- badge
- separator
- checkbox
- switch
- slider
- tooltip
- dropdown-menu
- table
Install with `npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table`.
## Token cues
Colors:
{
"accent": "#FF3D7F",
"background": "#FBFAF7",
"border": "#DDE3EC",
"error": "#E02424",
"info": "#2F6BFF",
"muted": "#6B7280",
"primary": "#2557FF",
"secondary": "#FFB000",
"success": "#11A36A",
"surface": "#FFFFFF",
"text": "#111827",
"warning": "#C87900"
}
Typography:
{
"base_size": "16px",
"body_font": "Inter",
"google_fonts_url": "https://fonts.googleapis.com/css2?family=Instrument+Sans:wght@500;600;700;800&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap",
"heading_font": "Instrument Sans",
"letter_spacing": "-0.018em",
"line_height": 1.5,
"mono_font": "IBM Plex Mono",
"scale_ratio": 1.22
}
## Visual character to preserve
- White and warm-neutral surfaces use 1px cool-gray borders, soft ambient shadows, and no repeated background texture or square grid.
- Key actions and data states receive small 6px to 14px pixel-aperture corner blocks clipped from cobalt, coral, and saffron accents.
- Cards use asymmetric header compositions with one large content region and two smaller utility modules instead of equal dashboard tiles.
- Icons are line icons with one or two square-pixel terminals, keeping the UI professional while giving edges a quantized rhythm.
- Focus and hover states shift via crisp inset outlines and short translate motion rather than glow, neon, or decorative stripes.
## ShadSync visual profile
{
"family": "brutalist",
"material": "ink",
"contour": "default",
"border": "solid",
"underlay": true,
"grain": true,
"stickerBadges": false,
"motion": "lift",
"density": "balanced",
"accents": [
"primary",
"accent",
"secondary",
"muted"
]
}
## Signature component recipes
### Button
Use `Button` for primary, secondary, outline, and ghost actions. Primary actions must expose the language's strongest contrast pair, while secondary and ghost actions should preserve the surface treatment instead of falling back to default neutral SaaS styling.
### Card
Use `Card`, `CardHeader`, `CardContent`, `CardFooter`, and `CardAction` as the main composition frame. Cards should demonstrate the language's surface, border, hierarchy, and density rules rather than appearing as generic rounded rectangles.
### Input and Textarea
Use `Input` and `Textarea` with visible focus rings, field labels, validation states, and the language's rhythm. Forms should show real product content, not placeholder-only controls.
### Select, Tabs, and Table
Use `Select`, `Tabs`, and `Table` to prove navigation, filtering, and dense data states. The table should show row rhythm, separators, hover/focus states, and an empty or status state when the language calls for it.
### Dialog and Sheet
Use `Dialog` for centered decisions and `Sheet` for contextual editing. Both should inherit the language's spacing, border, overlay, and motion rules.
## Preview shots
- `application-shell`: dashboard or workspace shell with navigation, cards, forms, and state badges.
- `detail-editor`: focused editing flow using input, textarea, select, switch/checkbox, dialog or sheet, and action buttons.
- `data-operations`: table-heavy operational view with tabs, dropdown menu affordances, badges, and destructive/empty states.
- Each preview shot must include a renderable `scene` payload with concrete headline, description, actions, and rows/fields/stats for the UI preview.
## Implementation contract
- Start from local `ui/src/components/ui` shadcn-style primitives; do not create a second component system.
- Apply `/katagami/shadcn/pixel-aperture-product-system/registry-theme.json` variables, then use these recipes for composition and state design.
- Preserve Katagami token names as source metadata; shadcn semantic names are only the export surface.
- Do: Use one dominant bright accent per interaction and keep the other hues as small state notes.; Make pixel influence visible in corners, terminals, icons, and small diagrams rather than full component geometry.; Keep backgrounds white or warm neutral with no square grids and no default dotted texture.; Choose real product scenes such as palette governance, release checks, or asset review where color carries meaning.
- Do not: Do not use rainbow sprawl, neon cyberpunk gradients, confetti, or arcade styling.; Do not attach decorative colored side rails or left stripes to cards, rows, buttons, or panels.; Do not turn every element blocky; preserve smooth radii and professional product typography.; Do not use generic SaaS dashboard panels with three equal cards as the main composition.
## Copy-paste component example
This generated starter proves the import shape. Production Katagami agents should replace it with a language-specific product composition.
```tsx
import { Badge } from "@/components/ui/badge";
import { Button } from "@/components/ui/button";
import {
Card,
CardContent,
CardDescription,
CardFooter,
CardHeader,
CardTitle,
} from "@/components/ui/card";
import { Input } from "@/components/ui/input";
import { Tabs, TabsList, TabsTrigger } from "@/components/ui/tabs";
export function PixelApertureProductSystemShadcnKit() {
return (
<section className="grid gap-4 rounded-[var(--radius)] border bg-background p-4 text-foreground">
<div className="flex items-start justify-between gap-4">
<div>
<Badge variant="outline">shadcn/ui</Badge>
<h2 className="mt-3 text-2xl font-semibold tracking-tight">Pixel Aperture Product System</h2>
<p className="mt-1 max-w-xl text-sm text-muted-foreground">
Use the Katagami registry theme, then compose these shadcn primitives
with the language-specific component recipes.
</p>
</div>
<Button>Apply theme</Button>
</div>
<Tabs defaultValue="components">
<TabsList>
<TabsTrigger value="components">Components</TabsTrigger>
<TabsTrigger value="states">States</TabsTrigger>
<TabsTrigger value="export">Export</TabsTrigger>
</TabsList>
</Tabs>
<Card>
<CardHeader>
<CardTitle>Component recipe</CardTitle>
<CardDescription>
Replace this starter content with the agent-authored product scene
from components.md and preview-shots.json.
</CardDescription>
</CardHeader>
<CardContent className="grid gap-3 sm:grid-cols-[1fr_auto]">
<Input defaultValue="Tokenized shadcn surface" aria-label="Recipe name" />
<Button variant="secondary">Preview state</Button>
</CardContent>
<CardFooter className="justify-between">
<Badge>Ready</Badge>
<Button variant="outline">Copy recipe</Button>
</CardFooter>
</Card>
</section>
);
}
```
## Layout notes
{
"breakpoints": "mobile 375px, tablet 768px, desktop 1200px, wide 1440px",
"grid": "Twelve-column desktop shell with a 72px left tool dock, a fluid central canvas, and a 320px inspection panel that stacks below on tablet and mobile.",
"whitespace": "Large outer margins and white gutters create premium calm; tight spacing is reserved for metadata, chips, and pixel-accent clusters."
}
{
"artifact": "katagami:shadcn-preview-shots",
"version": "preview-shots-v1",
"generator": "katagami-ui-compatibility-projection",
"generatedBy": "katagami-ui-projection",
"requiresVisualProfile": true,
"schema": "katagami:shadcn-preview-shots/renderable-v1",
"renderable": true,
"language": {
"id": "en-019e4685-7cd5-70d2-b718-7bd8bf6e313a",
"name": "Pixel Aperture Product System",
"slug": "pixel-aperture-product-system"
},
"installCommand": "npx shadcn@latest add button card input textarea select dialog sheet tabs badge separator checkbox switch slider tooltip dropdown-menu table",
"primitives": [
"button",
"card",
"input",
"textarea",
"select",
"dialog",
"sheet",
"tabs",
"badge",
"separator",
"checkbox",
"switch",
"slider",
"tooltip",
"dropdown-menu",
"table"
],
"identityNotes": [
"White and warm-neutral surfaces use 1px cool-gray borders, soft ambient shadows, and no repeated background texture or square grid.",
"Key actions and data states receive small 6px to 14px pixel-aperture corner blocks clipped from cobalt, coral, and saffron accents.",
"Cards use asymmetric header compositions with one large content region and two smaller utility modules instead of equal dashboard tiles.",
"Icons are line icons with one or two square-pixel terminals, keeping the UI professional while giving edges a quantized rhythm.",
"Focus and hover states shift via crisp inset outlines and short translate motion rather than glow, neon, or decorative stripes."
],
"visualProfile": {
"family": "brutalist",
"material": "ink",
"contour": "default",
"border": "solid",
"underlay": true,
"grain": true,
"stickerBadges": false,
"motion": "still",
"density": "balanced",
"accents": [
"primary",
"accent",
"secondary",
"muted"
]
},
"shots": [
{
"id": "application-shell",
"title": "Application shell",
"viewport": "desktop",
"primitives": [
"button",
"card",
"input",
"select",
"tabs",
"badge",
"separator",
"table"
],
"composition": "A real product workspace with navigation, summary cards, filtering controls, and one dense content region.",
"mustShow": [
"primary and secondary actions",
"card hierarchy",
"filterable state",
"table or list density"
],
"avoid": [
"component inventory walls",
"placeholder-only content",
"generic rounded SaaS chrome"
],
"scene": {
"eyebrow": "workspace spread",
"headline": "Pixel Aperture Product System launch room",
"description": "A product team workspace where navigation, filters, metrics, and dense rows carry the language's visible structure.",
"primaryAction": "Apply theme",
"secondaryAction": "Review states",
"stats": [
{
"label": "components",
"value": "16",
"tone": "accent"
},
{
"label": "states",
"value": "ready"
},
{
"label": "density",
"value": "balanced",
"tone": "warning"
}
],
"rows": [
{
"label": "Primary flow",
"value": "mapped",
"status": "active"
},
{
"label": "Token coverage",
"value": "semantic",
"status": "synced"
},
{
"label": "Responsive proof",
"value": "queued",
"status": "review"
}
],
"statuses": [
"Active",
"Synced",
"Draft"
]
}
},
{
"id": "detail-editor",
"title": "Detail editor",
"viewport": "tablet",
"primitives": [
"button",
"card",
"input",
"textarea",
"select",
"checkbox",
"switch",
"slider",
"dialog",
"sheet"
],
"composition": "A focused editing flow with form fields, validation, confirmation, and a contextual side panel.",
"mustShow": [
"focus ring",
"error or destructive state",
"dialog or sheet treatment",
"written guidance content"
],
"avoid": [
"unstyled browser controls",
"floating cards inside cards",
"missing labels"
],
"scene": {
"eyebrow": "editing flow",
"headline": "Language recipe editor",
"description": "A focused form proving labels, validation, toggles, panel rhythm, and action hierarchy.",
"primaryAction": "Save recipe",
"secondaryAction": "Open sheet",
"fields": [
{
"label": "Component family",
"value": "Narrative cards"
},
{
"label": "State treatment",
"value": "Visible focus + validation"
},
{
"label": "Motion",
"value": "Small lift, no opacity-only fade"
}
],
"statuses": [
"Focus",
"Invalid",
"Confirmed"
]
}
},
{
"id": "data-operations",
"title": "Data operations",
"viewport": "mobile",
"primitives": [
"button",
"tabs",
"badge",
"dropdown-menu",
"table",
"tooltip",
"separator"
],
"composition": "A compact operational view proving row rhythm, stacked actions, menu states, badges, and empty/destructive states.",
"mustShow": [
"responsive reflow",
"dense row styling",
"menu affordance",
"status badge system"
],
"avoid": [
"desktop-only tables",
"text overflow",
"default shadcn spacing without Katagami character"
],
"scene": {
"eyebrow": "operations",
"headline": "Compact review queue",
"description": "A narrow viewport scene with rows, menus, tooltips, badges, and destructive affordances.",
"primaryAction": "Resolve",
"secondaryAction": "Filter",
"rows": [
{
"label": "Button hierarchy",
"value": "approved",
"status": "ok"
},
{
"label": "Table rhythm",
"value": "needs pass",
"status": "watch"
},
{
"label": "Empty state",
"value": "designed",
"status": "done"
}
],
"statuses": [
"Queued",
"Blocked",
"Done"
]
}
}
],
"componentRecipes": [
{
"primitive": "button",
"intent": "Prove action hierarchy, focus, disabled, and destructive states."
},
{
"primitive": "card",
"intent": "Carry the language surface, border, elevation, and density rules."
},
{
"primitive": "input",
"intent": "Show labels, focus rings, validation, and spacing rhythm."
},
{
"primitive": "textarea",
"intent": "Show longer guidance, validation copy, and writing density."
},
{
"primitive": "select",
"intent": "Show filtering, selection contrast, and menu trigger styling."
},
{
"primitive": "dialog",
"intent": "Show centered decision states and overlay treatment."
},
{
"primitive": "sheet",
"intent": "Show contextual side panels and responsive editing."
},
{
"primitive": "tabs",
"intent": "Show navigational structure and active/inactive contrast."
},
{
"primitive": "badge",
"intent": "Show compact status vocabulary and semantic colors."
},
{
"primitive": "separator",
"intent": "Show section rhythm without generic gray dividers."
},
{
"primitive": "checkbox",
"intent": "Show binary selection with visible focus and checked states."
},
{
"primitive": "switch",
"intent": "Show settings toggles and on/off contrast."
},
{
"primitive": "slider",
"intent": "Show numeric adjustment with track/thumb styling."
},
{
"primitive": "tooltip",
"intent": "Show concise explanation styling above compact controls."
},
{
"primitive": "dropdown-menu",
"intent": "Show action menus, destructive items, and grouped choices."
},
{
"primitive": "table",
"intent": "Show dense operational data, separators, row states, and responsive behavior."
}
],
"qualityRules": {
"do": [
"Use one dominant bright accent per interaction and keep the other hues as small state notes.",
"Make pixel influence visible in corners, terminals, icons, and small diagrams rather than full component geometry.",
"Keep backgrounds white or warm neutral with no square grids and no default dotted texture.",
"Choose real product scenes such as palette governance, release checks, or asset review where color carries meaning."
],
"dont": [
"Do not use rainbow sprawl, neon cyberpunk gradients, confetti, or arcade styling.",
"Do not attach decorative colored side rails or left stripes to cards, rows, buttons, or panels.",
"Do not turn every element blocky; preserve smooth radii and professional product typography.",
"Do not use generic SaaS dashboard panels with three equal cards as the main composition."
]
}
}