dayuse-pptx（dayuse PPTX 命令行）

Dayuse PPTX Skill

This skill creates Dayuse-branded presentations following the company's visual identity, storytelling framework, and slide patterns. All brand assets are embedded locally — no external dependencies required.

Before creating any presentation, always also read the main pptx skill for technical guidance on creating PPTX files with PptxGenJS.

Asset Catalog

All brand assets are organized in assets/. ALWAYS use these real assets rather than generating placeholders.

Logos (assets/logos/)

Icons / Symbols (assets/icons/)

Image Bank (Photoshoot "New Brand June 2023")

The Dayuse Image Bank is the official repository of brand photography for all channels (CRM, Social Media, Website, presentations). It contains 35+ retouched, validated lifestyle photos from the June 2023 brand photoshoot.

Photo Categories & Subjects

Available Photos (assets/photos/)

⚠️ CRITICAL PHOTO RULE: Portrait photos (ratio < 1.0) must NEVER be used as full-bleed slide backgrounds — they would be aggressively cropped or distorted on a 16:9 slide. Use them in half-bleed (left or right half) or card crop layouts only. For full-bleed backgrounds, use ONLY landscape or square photos.

Photo Style Guidelines (for Presentations)

• Full-bleed: Use LANDSCAPE photos as full-slide backgrounds for cover or closing slides. Always use coverCrop() to avoid distortion.
• Half-bleed: Photo on one half, content on the other (50/50 split). Both landscape and portrait photos work here.
• Card crop: Crop photos into rounded rectangles (rectRadius: 0.12) for cards. Any orientation works.
• Overlay: Photo with gradient text overlay (see assets/brand-guide/images-best-practice.png)
• Always use brand gradient band at bottom when photo is NOT full-bleed

// coverCrop — center-crop a photo to fill a target area (like CSS object-fit: cover)
// Use this for ALL full-bleed photo backgrounds to avoid distortion
async function coverCrop(imagePath, targetW, targetH) {
  const meta = await sharp(imagePath).metadata();
  const targetRatio = targetW / targetH;
  const imgRatio = meta.width / meta.height;
  let region;
  if (imgRatio > targetRatio) {
    const newW = Math.round(meta.height * targetRatio);
    region = { left: Math.round((meta.width - newW) / 2), top: 0, width: newW, height: meta.height };
  } else {
    const newH = Math.round(meta.width / targetRatio);
    region = { left: 0, top: Math.round((meta.height - newH) / 2), width: meta.width, height: newH };
  }
  const buf = await sharp(imagePath).extract(region).resize(targetW, targetH).jpeg({ quality: 85 }).toBuffer();
  return "image/jpeg;base64," + buf.toString("base64");
}

// Example — full-bleed photo background with text overlay:
const bgData = await coverCrop("assets/photos/bed-1.jpg", 1920, 1080);
slide.addImage({ data: bgData, x: 0, y: 0, w: 10, h: 5.625 });
// Add semi-transparent overlay for text readability:
slide.addShape(pptx.shapes.RECTANGLE, { x: 0, y: 3.5, w: 10, h: 2.125, fill: { color: "292935", transparency: 40 } });
slide.addText("Room to daydream.", { x: 0.6, y: 3.8, w: 8.8, fontSize: 36, fontFace: "Manrope", color: "FFFFFF", bold: true });

Marketing Icons — "Réassurance Gradient" (assets/icons/marketing-icons.json)

19 SVG icons with brand gradient fills (orange/coral/yellow). ViewBox 49x49. Used for pitch decks, marketing materials, value propositions. All icons are stored in a single JSON file: assets/icons/marketing-icons.json (key = icon name, value = SVG string).

UI Icons — Design System (assets/icons/ui-icons.json)

184 SVG icons in flat outline style (stroke #292935 Evening Blue). ViewBox 24x24. Used for all presentation contexts. All icons are stored in a single JSON file: assets/icons/ui-icons.json (key = icon name, value = SVG string).

Naming convention (keys in JSON):

• nav-xxx — UI navigation actions (arrows, check, cross, edit, trash, menu, etc.)
• ind-xxx — Status & feedback (alert, check, clock, discount, gift, info, lock, star, etc.)
• xxx (no prefix) — Amenities & features (wifi, pool, parking, spa, bed, tv, restaurant, etc.)

Icon Helper Functions

const fs = require("fs");
const sharp = require("sharp");

// Load icon catalogs once
const UI_ICONS = JSON.parse(fs.readFileSync("assets/icons/ui-icons.json", "utf8"));
const MKT_ICONS = JSON.parse(fs.readFileSync("assets/icons/marketing-icons.json", "utf8"));

// UI icon → PNG (with optional recolor)
async function uiIconPng(name, color = "#292935", size = 128) {
  let svg = UI_ICONS[name];
  if (!svg) throw new Error(`UI icon "${name}" not found. Available: ${Object.keys(UI_ICONS).join(", ")}`);
  svg = svg.replace(/stroke="#292935"/g, `stroke="${color}"`);
  const buf = await sharp(Buffer.from(svg)).resize(size).png().toBuffer();
  return "image/png;base64," + buf.toString("base64");
}

// Marketing icon → PNG (gradient, use as-is)
async function marketingIconPng(name, size = 128) {
  const svg = MKT_ICONS[name];
  if (!svg) throw new Error(`Marketing icon "${name}" not found. Available: ${Object.keys(MKT_ICONS).join(", ")}`);
  const buf = await sharp(Buffer.from(svg)).resize(size).png().toBuffer();
  return "image/png;base64," + buf.toString("base64");
}

// ⚠️ MANDATORY — Use placeIcon() to add ANY icon to a slide. Never use addImage() directly for icons.
// This enforces the 1:1 ratio rule and prevents distorted icons.
function placeIcon(slide, data, x, y, size) {
  slide.addImage({ data, x, y, w: size, h: size }); // w === h ALWAYS
}

// Examples:
const wifiCoral = await uiIconPng("wifi", "#FDAA9A");          // coral
const starOrange = await uiIconPng("ind-star", "#F66236");     // orange
const checkWhite = await uiIconPng("nav-check", "#FFFFFF");    // white (for dark bg)
const alertPink = await uiIconPng("ind-alert", "#FF003E");     // hot pink
placeIcon(slide, wifiCoral, 1, 1, 0.4);  // 0.4" square

const hotelIcon = await marketingIconPng("hotel");
placeIcon(slide, hotelIcon, 1, 1, 0.5);  // 0.5" square

Recoloring: UI icons use stroke="#292935" — easy to recolor via the color param. Marketing icons have baked-in brand gradients (linearGradient orange→coral→yellow) — use as-is.

Brand Guide References (assets/brand-guide/)

These are exported pages for visual reference when designing slides:

Logo Usage Rules (from Brand Guidelines)

CRITICAL RULES:

• The symbol (Y icon) and wordmark (DAYUSE text) each have their own place and time. NEVER use them as a lock-up together on the same element. They CAN appear on the same layout, but never combined as one unit.
• Functional (Evening Blue versions): for practical uses — website, small sizes, web banners, formal documents
• Expressive (Gradient versions): for expressive uses — OOH, social channels, printed merch, hero slides
• The expressive core symbol (icon-gradient) can ONLY be used with the sun gradient — never recolor it
• Always use the supplied artwork — never try to recreate the wordmark

Step 0: Prepare Assets (MANDATORY)

Run these steps BEFORE writing any slide code.

Logos — Ready to Use (No Preprocessing Needed)

All logo and icon PNGs already have transparent backgrounds (RGBA). Use them directly from assets/logos/ and assets/icons/. No preprocessing required.

// Use assets directly — they are already transparent
const LOGO_GRADIENT = "assets/logos/logo-gradient.png";
const LOGO_BLACK = "assets/logos/logo-black.png";
const ICON_GRADIENT = "assets/icons/icon-gradient.png";
const ICON_BLACK = "assets/icons/icon-black.png";

Legacy note: scripts/preprocess-logo.py exists as a fallback if logos are ever re-exported with opaque backgrounds. Currently NOT needed.

⚠️ CRITICAL — Image & Icon Aspect Ratio (NO DISTORTION)

ALL images and icons MUST maintain their original aspect ratio. Never set both w and h arbitrarily — always compute one from the other.

const sharp = require("sharp");

// Helper: get image dimensions and compute correct placement
async function fitImage(imagePath, maxW, maxH) {
  const meta = await sharp(imagePath).metadata();
  const ratio = meta.width / meta.height;
  let w, h;
  if (ratio >= maxW / maxH) {
    // wider than slot → fit to width
    w = maxW;
    h = maxW / ratio;
  } else {
    // taller than slot → fit to height
    h = maxH;
    w = maxH * ratio;
  }
  return { w, h };
}

// For base64 data (icons from JSON), use the SVG viewBox or known ratio:
// UI icons: viewBox 24x24 → ratio 1:1 → ALWAYS use same w and h
// Marketing icons: viewBox 49x49 → ratio 1:1 → ALWAYS use same w and h
// Photos: use fitImage() helper above

// CORRECT — 1:1 icon
slide.addImage({ data: iconData, x: 1, y: 1, w: 0.5, h: 0.5 });

// CORRECT — photo fitted to slot
const { w, h } = await fitImage("assets/photos/couplepool.jpg", 4.5, 3.0);
slide.addImage({ path: "assets/photos/couplepool.jpg", x: 0.5, y: 1, w, h });

// WRONG — arbitrary w/h stretches the image
slide.addImage({ path: "assets/photos/couplepool.jpg", x: 0.5, y: 1, w: 4.5, h: 3.0 }); // DISTORTED!

Rules:

• Icons (UI + Marketing): Always square w === h (they are all 1:1 viewBox)
• Photos: Always use fitImage() helper or manually compute h = w / ratio
• Logos: Wordmark = 2:1, Symbol = 1:1 (see below)

Logo — Respect the 2:1 Aspect Ratio (Wordmark Only)

The wordmark logos are 2000x1000px = exactly 2:1 ratio. Always maintain this ratio when placing:

// CORRECT — 2:1 ratio maintained
const LOGO_W = 1.8;
const LOGO_H = LOGO_W / 2; // = 0.9
slide.addImage({ path: "assets/logos/logo-gradient.png", x: 0.6, y: 0.4, w: LOGO_W, h: LOGO_H });

// WRONG — distorted logo
slide.addImage({ path: logo, x: 0.6, y: 0.4, w: 1.8, h: 0.5 }); // squished!

Common sizes (all 2:1):

• Cover top-left: w: 1.8, h: 0.9
• Closing centered: w: 1.4, h: 0.7
• Small footer: w: 1.0, h: 0.5

Icon Symbol — 1:1 Aspect Ratio

The symbol icons are circular = exactly 1:1 ratio:

• Slide footer symbol: w: 0.35, h: 0.35
• Cover accent: w: 0.5, h: 0.5

Gradient Band

Create the Dayuse signature gradient band (jaune → orange → corail → bleu/vert) as a PNG image to place at the bottom of every slide:

async function makeGradientBand(width = 2000, height = 12) {
  const svg = `<svg width="${width}" height="${height}" xmlns="http://www.w3.org/2000/svg">
    <defs><linearGradient id="g" x1="0%" y1="0%" x2="100%" y2="0%">
      <stop offset="0%" stop-color="#FEB900"/>
      <stop offset="33%" stop-color="#FD7030"/>
      <stop offset="67%" stop-color="#FDAA9A"/>
      <stop offset="100%" stop-color="#B7D5D5"/>
    </linearGradient></defs>
    <rect width="${width}" height="${height}" fill="url(#g)"/>
  </svg>`;
  const buf = await sharp(Buffer.from(svg)).png().toBuffer();
  return "image/png;base64," + buf.toString("base64");
}

// Place at bottom of every content slide:
slide.addImage({ data: gradientData, x: 0, y: 5.525, w: 10, h: 0.1 });

Gradient Backgrounds (for Section Slides)

The brand supports 4 gradient types for backgrounds. Use these for section divider slides (like WHY? / HOW? transitions):

// Generic Gradient (full spectrum — for brand statement slides)
async function makeGenericGradientBg(width = 1920, height = 1080) {
  const svg = `<svg width="${width}" height="${height}" xmlns="http://www.w3.org/2000/svg">
    <defs><linearGradient id="g" x1="0%" y1="100%" x2="100%" y2="0%">
      <stop offset="0%" stop-color="#FEB900"/>
      <stop offset="33%" stop-color="#FD7030"/>
      <stop offset="67%" stop-color="#FDAA9A"/>
      <stop offset="100%" stop-color="#B7D5D5"/>
    </linearGradient></defs>
    <rect width="${width}" height="${height}" fill="url(#g)"/>
  </svg>`;
  const buf = await sharp(Buffer.from(svg)).png().toBuffer();
  return "image/png;base64," + buf.toString("base64");
}

// Primary Gradient (warm tones — for energy/passion slides)
// #FEB900 → #FD7030 → #FDAA9A

// Complementary 1 (blues — for calm/wellness slides)
// #B7D5D5 → #7BBFCF → #3597C8

// Complementary 2 (corail → violet — for creative/experience slides)
// #FDAA9A → #C88AAE → #6E69AC

DIRECTION RULE:

• Gradient on text: direction top-left → bottom-right (reading direction)
• Gradient as background: direction bottom-left → top-right

Icons — Dayuse Custom Icon Library (187 icons)

Full catalog: See references/icon-catalog.md for the complete list of 187 icons with names, descriptions, and react-icons equivalents.

8 Categories:

How to use icons:

Option 1 — Exported Dayuse icons (PREFERRED): If Dayuse SVG/PNG icons have been exported from Figma into assets/icons/{category}/, use those directly:

slide.addImage({ path: "assets/icons/hotel-amenities/wifi.png", x: 1, y: 1, w: 0.4, h: 0.4 });

Option 2 — react-icons fallback: When Dayuse icons aren't available as files, use react-icons/fa (Font Awesome) with Dayuse brand colors. Check references/icon-catalog.md for the react-icons equivalent of each Dayuse icon.

const React = require("react");
const ReactDOMServer = require("react-dom/server");
const sharp = require("sharp");
const { FaWifi, FaSwimmingPool, FaParking } = require("react-icons/fa");

async function iconPng(IconComponent, color, size = 256) {
  const svg = ReactDOMServer.renderToStaticMarkup(
    React.createElement(IconComponent, { color, size: String(size) })
  );
  const buf = await sharp(Buffer.from(svg)).png().toBuffer();
  return "image/png;base64," + buf.toString("base64");
}

// Usage with Dayuse palette colors:
const wifiIcon = await iconPng(FaWifi, "#FDAA9A");     // coral for amenities
const poolIcon = await iconPng(FaSwimmingPool, "#F66236"); // orange for leisure
const parkIcon = await iconPng(FaParking, "#FEB900");   // yellow for functional
slide.addImage({ data: wifiIcon, x: 1, y: 1, w: 0.4, h: 0.4 });

Install deps: npm install -g react-icons react react-dom sharp

Icon styling rules:

• Style: Outline/line icons (matching Dayuse custom style). Do NOT use filled/solid icons unless specifically named "Solid" in the catalog.
• UI icons on slides: May be placed inside colored circles (0.4-0.7" diameter) using Dayuse accent colors, OR used standalone
• Marketing icons (gradient): Use standalone ONLY — NO colored circle, NO background shape behind them. They already have their own gradient fill and are self-contained.
• Color on white bg (UI icons): Use Evening Blue 292935 or accent colors (F66236, FDAA9A, FEB900, FF003E)
• Color on dark bg (UI icons): Use White FFFFFF
• All icons are 1:1 ratio — always use w === h when placing

Step 1: Identify the Deck Type & Dynamic Parameters

Ask the user (if not clear) which type of deck they need:

Dynamic Parameters (ask user or infer from context)

These values should NEVER be hardcoded — always determine them from user input:

Closing Message by Deck Type

IMPORTANT: Do NOT use "MADE WITH LOVE AT DAYUSE" on reporting or strategy decks. This phrase is for marketing/brand contexts only.

Step 2: Apply the Dayuse Storytelling Framework

CRITICAL: Every Dayuse presentation follows a "Vision-First" narrative arc. Never start with details — always anchor in the WHY before the WHAT and HOW.

Narrative Arc (applies to ALL deck types)

1. VISION / CONTEXTE  → Pourquoi on est là, la big picture
2. FRAMEWORK / METHODE → Comment on structure le sujet
3. DONNEES / PREUVES   → Les faits, analyses, résultats
4. INSIGHTS / SO WHAT  → Ce que ça veut dire concrètement
5. ACTION PLAN / NEXT  → Ce qu'on fait maintenant

Structures par Type de Deck

Pitch externe:

1. Cover (titre + visuel lifestyle)
2. Dayuse in figures (crédibilité)
3. Proposition de valeur
4. Product demo / mockups
5. Business model
6. Marketing support
7. Contact / CTA

Reporting interne:

1. Titre + date + scope
2. Rappel vision / objectif
3. Vue synthétique KPIs
4. Deep dives par axe / marché
5. Insights clés
6. Action plan

Roadmap / Plan d'action:

1. Vision et ambition
2. Contexte et enjeux
3. Etapes clés + jalons temporels
4. Détail par étape
5. Next steps + ownership

Analyse stratégique:

1. Problématique et objectif
2. Framework / méthodologie
3. Données et résultats
4. Synthèse comparative
5. Recommandations

Step 3: Apply Dayuse Visual Identity

Color Palette

Color Coding par Use Case

• Leisure = Coral FDAA9A
• Fonctionnel = Orange F66236
• Travel = Yellow FEB900
• Work = Hot Pink FF003E

Accent Palette (5 couleurs)

Les 5 couleurs d'accent à utiliser pour les graphiques, badges, tags, cercles d'icônes:

• FDAA9A — Coral (doux, secondaire)
• F66236 — Orange (principal, énergie)
• FEB900 — Yellow Gold (CTA, attention)
• FF003E — Hot Pink (urgence, contraste)
• FFE5EA — Rose pâle (fonds, encarts)

Note: les anciens bleus (51B0B0, 3597C8) et le violet (6E69AC) ne font plus partie de la palette d'accent. Utiliser uniquement la gamme chaude ci-dessus.

Color Spectrum (Emotional)

Le spectre de couleurs Dayuse représente un voyage émotionnel (de gauche à droite):

• Gauche (chaud): Liberté, Soleil, Joie, Bonheur, Intensité, Amour
• Droite (frais): Bien-être, Ciel, Paisibilité, Calme, Temps pour soi, Ressource

Contrast Rule

"Font should always maximise lisibility and strong contrast." Always alternate:

• Dark text (292935) on light backgrounds (FFFFFF, F8F8F8, gradients clairs)
• White text (FFFFFF) on dark backgrounds (292935), colored backgrounds (Yellow, Orange, Hot Pink), or gradient backgrounds

BACKGROUND RULES (CRITICAL)

Evening Blue (292935) is FORBIDDEN as a slide background. It is a TEXT color only.

Allowed slide backgrounds:

• FFFFFF (white) — default for ALL content slides
• F8F8F8 (off-white) — subtle variation
• Brand gradient backgrounds — for section divider slides ONLY (WHY? / HOW? transitions)
• FEB900 (yellow) — for bold statement slides (e.g. "Only 3% of French people have heard of Dayuse")
• A lifestyle photo as full-bleed background (for closing slides)

The only exception where 292935 can be used as a SHAPE fill (not slide bg) is for small accent elements like author name cards or data pill badges.

Typography — Manrope Only (Google Slides Compatible)

IMPORTANT: The Figma brand guidelines specify Maison Neue Extended Bold for H1 titles, but since Dayuse presentations are delivered via Google Slides, Maison Neue is NOT available and NOT editable there. Therefore ALL text uses Manrope (Google Font, fully compatible with Google Slides).

The hierarchy below adapts the Figma brand sizing/weight rules to Manrope only.

Title Level 1 (Hero): Manrope ExtraBold

For hero titles, section divider text, bold statements. Replaces Maison Neue in PPTX context.

Font: Manrope ExtraBold (weight 800)
Size: 36-48pt
Line Height: tight (1.1x)
Letter Spacing: 0%
Color: 292935 (or FFFFFF on dark/gradient backgrounds)

Title Level 2 (Slide Title): Manrope Bold

For slide titles, section sub-headers. The "insight title" used on most content slides.

Font: Manrope Bold (weight 700)
Size: 24-30pt
Line Height: 1.2x
Letter Spacing: 0%
Color: 292935 (key words in F66236)

Subtitle: Manrope SemiBold

For slide subtitles, chapeau text above titles.

Font: Manrope SemiBold (weight 600)
Size: 16-20pt
Line Height: 1.3x
Letter Spacing: 0%
Color: 54545D

Running Text: Manrope Regular

For body text, descriptions, explanations.

Font: Manrope Regular (weight 400)
Size: 12-14pt
Line Height: 22
Letter Spacing: 1%
Color: 54545D

Secondary Text: Manrope Bold (FULL CAPS)

For CTAs, signatures, chapeau labels, important secondary messages. Always uppercase with letter spacing.

Font: Manrope Bold (weight 700)
Size: variable (typically 10-14pt)
Letter Spacing: 17%
Transform: UPPERCASE
Color: 292935 or 7F7F86

Example: MADE WITH LOVE AT DAYUSE / ROOM TO DAYDREAM / VIEW OUR HOTELS

Full Typography Reference Table

Titre-Insight Pattern (OBLIGATOIRE)

Every slide title MUST be an insight (a conclusion), NOT a descriptive label.

WRONG: "Analyse USA"
RIGHT: "Les hôtels Travel drivent la dynamique nouveaux clients."

WRONG: "Résultats Q3"
RIGHT: "Le Travel comme générateur de valeur : +59% de croissance."

WRONG: "Distribution hôtel"
RIGHT: "Un parc mondial principalement Fonctionnel aujourd'hui."

Implementation: Title text in Evening Blue bold + key words in Orange bold to guide the eye.

slide.addText([
  { text: "Le daytime génère ", options: { fontSize: 26, fontFace: "Manrope", color: "292935", bold: true } },
  { text: "+59% de RevPAR", options: { fontSize: 26, fontFace: "Manrope", color: "F66236", bold: true } },
  { text: " sur les créneaux ", options: { fontSize: 26, fontFace: "Manrope", color: "292935", bold: true } },
  { text: "sous-exploités.", options: { fontSize: 26, fontFace: "Manrope", color: "F66236", bold: true } },
], { x: 0.6, y: 0.3, w: 8.8, h: 0.8, margin: 0 });

The 4 Brand Gradients

Reference: assets/brand-guide/gradients-4types.png

Gradient Usage Rules

1. On text: Direction top-left → bottom-right (reading direction). Gradients can ONLY be used on hero titles (Manrope ExtraBold 800) as a title or main message. Never apply gradient to body text or secondary elements.
2. On backgrounds: Direction bottom-left → top-right. Should generally NOT be used with an image on top (exception: for balance).
3. HQ Gradients: For key visuals, use angular gradients with background blur overlay. These create a more diffuse, organic look suited for non-print, non-functional use.

Gradient Text in PptxGenJS

Since PptxGenJS doesn't natively support gradient text, simulate it by rendering gradient text as a PNG image:

async function makeGradientText(text, fontSize = 80, width = 1920, height = 300) {
  const svg = `<svg width="${width}" height="${height}" xmlns="http://www.w3.org/2000/svg">
    <defs>
      <linearGradient id="textGrad" x1="0%" y1="0%" x2="100%" y2="100%">
        <stop offset="0%" stop-color="#FEB900"/>
        <stop offset="33%" stop-color="#FD7030"/>
        <stop offset="67%" stop-color="#FDAA9A"/>
        <stop offset="100%" stop-color="#B7D5D5"/>
      </linearGradient>
    </defs>
    <text x="0" y="${fontSize}" font-family="Manrope, Arial Black, sans-serif"
          font-weight="800" font-size="${fontSize}px" fill="url(#textGrad)">
      ${text}
    </text>
  </svg>`;
  const buf = await sharp(Buffer.from(svg)).png().toBuffer();
  return "image/png;base64," + buf.toString("base64");
}

Slide Patterns

1. Slide Cover

• Fond BLANC
• Logo wordmark (gradient or black) en haut à gauche (2:1 ratio, transparent)
• Titre en Manrope ExtraBold 36-48pt, Evening Blue
• Sous-titre et auteur en Manrope Regular gris 54545D
• Bandeau gradient en bas

2. Slide Section Divider (Gradient Background)

• Full-bleed gradient background (Generic or Primary)
• Gros texte centré en Manrope ExtraBold 60-80pt, BLANC
• Sous-texte en Manrope SemiBold, BLANC
• NO gradient band at bottom (gradient IS the background)
• Use for WHY? / HOW? / WHAT? transitions

3. Slide Bold Statement (Yellow Background)

• Full-bleed FEB900 yellow background
• Titre en Manrope Bold 14pt noir en chapeau
• Statement en Manrope ExtraBold 36-44pt noir
• Description en Manrope Regular 14pt noir
• NO gradient band (colored bg)

4. Slide Titre de Section

• Fond gris clair (E8E8E8) sur la moitié gauche
• Nom de section en gros, en gradient (utiliser le gradient comme image)
• Contenu sur la moitié droite, fond blanc

5. Slide KPI / Chiffres Clés

• Icônes dans des cercles colorés
• Gros chiffre (36-48pt, bold, 292935)
• Label sous le chiffre (11pt, 7F7F86)
• Grille 2x3 ou 3x2

6. Slide Matrice / Tableau

• Pastilles arrondies foncées (292935) avec texte blanc
• Pastilles colorées pour les highlights
• Encart takeaway rose pâle en bas

7. Slide Graphique

• Deux graphiques côte à côte quand possible
• Bullets d'insights sous chaque graphique
• Titre-insight en haut

8. Slide Roadmap / Timeline

• Etapes numérotées dans des encarts fond léger
• Badges de timing colorés (Q1, Q2-Q3...)
• Ligne verticale de connexion entre les étapes

9. Slide Cards (3 colonnes)

• 3 cards ROUNDED_RECTANGLE en F8F8F8
• Icône dans cercle coloré centré en haut
• Titre bold centré
• Items avec check icons

10. Slide Vision/Quote (from Brand Platform style)

• Fond blanc
• Barre gradient verticale gauche (thin, ~0.15" wide, full height)
• Chapeau en Manrope Bold UPPERCASE + small icon: OUR VISION, OUR MISSION
• Grande citation en Manrope ExtraBold 28-36pt
• Description en Manrope Regular 14pt
• Symbol icon (black) en bas à droite footer
• Bandeau gradient en bas

11. Slide Photo + Text Overlay

• Lifestyle photo as partial or full background
• Gradient text overlay using Manrope ExtraBold
• CTA button with gradient or white background
• Logo wordmark bottom-center
• Reference: assets/brand-guide/images-best-practice.png

12. Slide Closing

• Fond BLANC (ou photo lifestyle plein écran)
• Logo centré (2:1 ratio, transparent)
• Message de closing with accent orange
• CTA buttons en orange
• Bandeau gradient en bas

Elements Visuels Récurrents

• Bandeau gradient en bas de CHAQUE slide blanc (0.1" height). NOT on gradient/colored bg slides.
• Barre gradient verticale gauche: thin stripe (~0.15") on the left edge for vision/quote slides
• Encarts takeaway rose (FDE8E4) pour conclusions/punchlines
• Pastilles données: rounded rect 292935 avec texte blanc
• Cercles colorés autour des icônes (0.4-0.7" diameter)
• CTA buttons: rounded rect orange F66236 avec texte blanc bold
• Cards: ROUNDED_RECTANGLE, rectRadius: 0.1-0.12, fill F8F8F8
• UPPERCASE secondary text: Manrope Bold, 17% letter spacing, for signatures/CTAs

Layout Rules

• Marges: minimum 0.5" de chaque côté
• Espacement entre blocs: 0.3-0.4"
• Texte aligné à gauche (sauf titres centrés sur cover/section dividers)
• JAMAIS de ligne d'accent sous les titres (hallmark AI)
• Varier les layouts (pas 3x le même layout consécutif)
• Chaque slide a au moins 1 élément visuel (icône, shape, chart, gradient element)
• "The brand is meant to live with diverse and exploratory layouts" — don't be repetitive

Step 4: Build the Presentation

1. Confirm deck type, audience, content with user
2. Propose structure de slides (titres-insights) pour validation
3. Prepare assets: gradient band + gradient backgrounds (logos are ready to use)
4. Build PPTX via pptx skill PptxGenJS workflow
5. Apply ALL Dayuse visual identity rules
6. QA via pptx skill verification process

Step 5: Quality Checklist

Before delivering, verify ALL of these:

• Titres = insights (pas descriptifs)
• Mots-clés en orange F66236
• Palette Dayuse respectée
• AUCUN fond Evening Blue — tous blancs, off-white, gradient, ou yellow
• Font = Manrope partout (ExtraBold 800 pour H1, Bold 700 pour H2, Regular pour body)
• Secondary text in FULL CAPS with letter spacing (signatures, CTAs, chapeaux)
• Logo transparent et ratio respecté (2:1 wordmark, 1:1 symbol) — use assets directly, no preprocessing
• Logo and symbol never used as a lock-up — never combined in one element
• Gradient direction correct: text = top-left→bottom-right, background = bottom-left→top-right
• Bandeau gradient en bas de chaque slide blanc (NOT on gradient/colored bg slides)
• Gros chiffres 36pt+ bold
• Arc narratif Vision-First respecté
• Pas de slide text-only (every slide has a visual element)
• Encarts takeaway rose pour conclusions
• Section dividers use gradient backgrounds with large white Manrope ExtraBold text
• Slide de fin avec logo + CTA (closing message matches deck type — see table)
• Langue correcte (FR interne, EN/FR externe)
• Contrast rule applied (dark text on light bg, white text on dark/colored bg)
• No hardcoded names — author info comes from user input only
• Portrait photos NEVER used as full-bleed — only half-bleed or card crop
• All icons placed via placeIcon() — w === h enforced

Troubleshooting

Logo avec fond noir rectangulaire: → Les logos actuels sont déjà transparents (RGBA). Si un logo est re-exporté avec fond opaque, lancer python scripts/preprocess-logo.py <input.png> <output.png>

Logo déformé / écrasé: → Ratio non respecté. Wordmark: h = w / 2. Symbol: h = w.

Font ne s'affiche pas: → Manrope non installée sur la machine cible. Installer depuis Google Fonts. Google Slides la supporte nativement.

Gradient text doesn't render: → PptxGenJS ne supporte pas le texte gradient nativement. Utiliser la fonction makeGradientText() pour générer un PNG. Vérifier que sharp est installé.

Icônes invisibles (blanches sur blanc): → Les icônes blanches doivent être dans un cercle coloré. Ne jamais placer une icône blanche directement sur fond blanc.

SVG icons depuis JSON: → Les icônes sont dans ui-icons.json et marketing-icons.json. Utiliser les helpers uiIconPng(name) et marketingIconPng(name). Les clés sont sans extension: "wifi", "nav-check", "ind-star", "hotel".

Photo trop lourde / lente: → Les photos haute-res peuvent ralentir le PPTX. Utiliser sharp pour redimensionner avant insertion: sharp(photo).resize(1920).jpeg({quality: 80}).

SVG icons invisible sur fond blanc: → Les icônes UI sont en stroke #292935. Sur fond blanc elles sont visibles. Si nécessaire, recolorer le stroke dans le SVG avant conversion PNG.

Deck manque d'impact: → Chaque slide doit avoir un élément visuel → Augmenter contraste titre (32pt+) vs corps (14pt) → Utiliser encarts colorés pour takeaways → Ajouter au moins 1-2 section dividers avec gradient background

Storytelling plat: → Revérifier arc Vision-First → Titres = conclusions, pas sujets → Ajouter transitions entre sections (gradient divider slides) → Use bold statement slides (yellow bg) for impactful data points