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design_spec.md
1 ---
2 layout_id: presentation_core_43
3 kind: layout
4 category: general
5 summary: A structure-only 4:3 system with 16 authored PowerPoint Layouts for projector, classroom, academic, and meeting-room presentations.
6 keywords: [general, powerpoint, 4-3, projector, academic]
7 canvas_format: ppt43
8 canvas_width: 1024
9 canvas_height: 768
10 canvas_viewbox: "0 0 1024 768"
11 replication_mode: standard
12 native_structure_mode: structured
13 page_count: 16
14 page_types:
15 - title_slide
16 - title_content
17 - section_header
18 - two_content
19 - comparison
20 - title_only
21 - blank
22 - content_caption
23 - picture_caption
24 - hero_statement
25 - three_card
26 - kpi_grid
27 - process_timeline
28 - stacked_split
29 - chart_insight
30 - table_summary
31 placeholders:
32 01_title_slide: ["{{TITLE}}", "{{SUBTITLE}}"]
33 02_title_content: ["{{PAGE_TITLE}}", "{{CONTENT_AREA}}"]
34 03_section_header: ["{{CHAPTER_TITLE}}", "{{CHAPTER_DESC}}"]
35 04_two_content: ["{{PAGE_TITLE}}", "{{LEFT_CONTENT}}", "{{RIGHT_CONTENT}}"]
36 05_comparison: ["{{PAGE_TITLE}}", "{{LEFT_TITLE}}", "{{LEFT_CONTENT}}", "{{RIGHT_TITLE}}", "{{RIGHT_CONTENT}}"]
37 06_title_only: ["{{PAGE_TITLE}}"]
38 07_blank: []
39 08_content_caption: ["{{PAGE_TITLE}}", "{{CONTENT_AREA}}", "{{CAPTION}}"]
40 09_picture_caption: ["{{PAGE_TITLE}}", "{{CAPTION}}"]
41 10_hero_statement: ["{{KEY_MESSAGE}}", "{{SUBTITLE}}"]
42 11_three_card: ["{{PAGE_TITLE}}", "{{CARD_1}}", "{{CARD_2}}", "{{CARD_3}}"]
43 12_kpi_grid: ["{{PAGE_TITLE}}", "{{KPI_1}}", "{{KPI_2}}", "{{KPI_3}}", "{{KPI_4}}", "{{CONTENT_AREA}}"]
44 13_process_timeline: ["{{PAGE_TITLE}}", "{{STEP_1}}", "{{STEP_2}}", "{{STEP_3}}", "{{STEP_4}}", "{{KEY_MESSAGE}}"]
45 14_stacked_split: ["{{PAGE_TITLE}}", "{{TOP_CONTENT}}", "{{BOTTOM_CONTENT}}"]
46 15_chart_insight: ["{{PAGE_TITLE}}", "{{KEY_MESSAGE}}", "{{SOURCE}}"]
47 16_table_summary: ["{{PAGE_TITLE}}", "{{KEY_MESSAGE}}", "{{SOURCE}}"]
48 ---
49
50 # Presentation Core 4:3 — Design Specification
51
52 ## IV. Signature Design Elements
53
54 Presentation Core 4:3 provides a structural vocabulary for rooms and devices
55 that still project in 4:3: classrooms, lecture halls, academic sessions, and
56 meeting rooms with fixed legacy displays. The neutral prototype paint exists
57 only to expose hierarchy and slot geometry; it is not an identity segment.
58 Color, typography, logo, voice, and icon treatment remain downstream decisions.
59
60 | Element | Template-specific behavior |
61 |---|---|
62 | Shared frame | One restrained Master background and a 56 px horizontal safe frame keep the roster coherent. The title band occupies `56 36 912 64` on every titled page, and the content field runs from y 136 to y 712. |
63 | Narrower column budget | The 912 px content width gives each half-page column 440 px and each third 288 px. Body copy in split layouts steps down one size relative to single-column pages so line length stays readable instead of forcing hyphenation. |
64 | Vertical preference | The taller field makes stacking a first-class option rather than a fallback. `stacked_split` divides the page into two full-width bands; use it where a wide canvas would reach for a left/right split. |
65 | Square-leaning metric grid | `kpi_grid` places four metrics in a 2×2 block over one evidence panel instead of a single four-across row, which would compress each metric below a readable width on this canvas. |
66 | Image system | `picture_caption` uses a typed `picture` slot occupying the full left field with an independent caption rail, matching the near-square crop that 4:3 rooms display well. |
67 | Data system | `chart_insight` and `table_summary` declare typed `chart` / `table` slots. Their authored groups remain complete SVG fallbacks; optional replacement metadata can materialize PowerPoint-native data objects only when that export path is requested. |
68 | Text entry | General body and object slots begin at the upper-left. Centered alignment is reserved for KPI values, short process nodes, the timeline takeaway, and focused statements. |
69 | Neutral framing | Pale panels and hairlines reveal intended zones in the prototype; downstream deck or brand skin controls final paint. |
70
71 ## V. Page Roster
72
73 | SVG | Layout key | PowerPoint picker name | Purpose |
74 |---|---|---|---|
75 | `01_title_slide.svg` | `title_slide` | Title Slide | Accent-anchored title and subtitle cover |
76 | `02_title_content.svg` | `title_content` | Title and Content | Page title over one full-width content region |
77 | `03_section_header.svg` | `section_header` | Section Header | Large section title with supporting description |
78 | `04_two_content.svg` | `two_content` | Two Content | Equal left and right content regions |
79 | `05_comparison.svg` | `comparison` | Comparison | Paired headings over paired comparison bodies |
80 | `06_title_only.svg` | `title_only` | Title Only | Title slot with an otherwise open canvas |
81 | `07_blank.svg` | `blank` | Blank | Zero-slot composition surface |
82 | `08_content_caption.svg` | `content_caption` | Content with Caption | Main content with a dedicated caption rail |
83 | `09_picture_caption.svg` | `picture_caption` | Picture with Caption | Full-height picture slot with a caption column |
84 | `10_hero_statement.svg` | `hero_statement` | Hero Statement | One dominant claim with a short qualifier |
85 | `11_three_card.svg` | `three_card` | Three-Card Synthesis | Three parallel synthesis regions |
86 | `12_kpi_grid.svg` | `kpi_grid` | KPI Grid | Four metrics in a 2×2 block over one evidence region |
87 | `13_process_timeline.svg` | `process_timeline` | Process Timeline | Four ordered steps on a shared axis plus a takeaway rail |
88 | `14_stacked_split.svg` | `stacked_split` | Stacked Split | Two full-width horizontal bands |
89 | `15_chart_insight.svg` | `chart_insight` | Chart and Insight | Chart slot with SVG fallback, interpretation, and source rails |
90 | `16_table_summary.svg` | `table_summary` | Table and Summary | Table slot with SVG fallback, summary, and source rails |
91
91 lines MARKDOWN