name: deck-image-schema
description: "Define visual schema for presentation content specifying image types, layout positions, sizing, and styling rules for deck generation."
phase: IMPLEMENT
category: specialized
version: "1.0.0"
depends_on: ["taste-schema", "content-analysis"]
tags: [specialized, design, schema, visual, presentation]

Deck Image Schema

Define the visual specification for presentation slide imagery.

When to Use

• Deck generation — Creating the image specification for a presentation
• Visual consistency — Establishing image rules across slides
• Brand alignment — Ensuring images match the taste-schema identity
• When you say: "image schema", "visual specification", "deck images"

Required Deliverables

Core Concept

Image schema answers: "What images appear on each slide, where, and how should they look?"

Taste Schema (brand) → Image Schema (visual rules) → Slide Generation (applied)

The image schema bridges brand identity (from taste-schema) to concrete visual specifications per slide type.

Schema Structure

{
  "version": "1.0.0",
  "defaults": {
    "aspectRatio": "16:9",
    "quality": "high",
    "style": "professional"
  },
  "slideTypes": {
    "title": {
      "hero": { "position": "full-bleed", "opacity": 0.3, "overlay": true }
    },
    "content": {
      "accent": { "position": "right-third", "size": "medium" }
    },
    "comparison": {
      "left": { "position": "left-half", "size": "contained" },
      "right": { "position": "right-half", "size": "contained" }
    }
  },
  "imageTypes": {
    "hero": "Full-width background image",
    "accent": "Supporting visual element",
    "icon": "Small symbolic image",
    "diagram": "Technical illustration",
    "screenshot": "Product or UI capture"
  }
}

Image Types

Layout Grid

┌──────────────────────────────────┐
│  ┌────────┐  ┌────────────────┐  │
│  │        │  │                │  │
│  │  Left  │  │     Right      │  │
│  │  Third │  │     Two-Thirds │  │
│  │        │  │                │  │
│  └────────┘  └────────────────┘  │
└──────────────────────────────────┘

Checklist

• [ ] Image types defined with sizing rules
• [ ] Layout positions specified per slide type
• [ ] Aspect ratio and quality defaults set
• [ ] Visual style aligned with taste-schema
• [ ] Schema exported as deck-image-schema.json

Relationship to Other Skills

Key Principles

Consistency over variety. Every slide should feel like part of the same deck.

Schema drives generation. The schema is the contract between design intent and slide output.

Position is semantic. Use named positions (right-third) not pixel coordinates.

Type determines treatment. Each image type has consistent sizing and placement rules.