zcbot/skills/ppt/templates/charts/README.md

SVG Visualization Template Library

This directory contains the standardized SVG visualization templates used by PPT Master — charts, infographics, process diagrams, relationship diagrams, and strategic frameworks. The directory name charts/ is kept for backward compatibility; the library scope is broader than charts.

Source of truth

charts_index.json is the single source of truth for the library: total count + one selection-rule summary per template (format: "Pick for X. Skip if Y (use other_key)."). Both human readers and AI roles read it in full — there is no category/keyword sub-index. Selection is done by semantic match against the summary list in one pass.

To browse the library, open charts_index.json and scan the charts block top-to-bottom; each entry's summary answers "when do I pick this, when do I skip" directly.

Style rules

See CHART_STYLE_GUIDE.md for color palette, typography, and SVG authoring conventions all templates must follow.

Usage

Before generating a chart page, open the corresponding <key>.svg file to read its structure and layout. Files are named after the key field in charts_index.json (e.g. bar_chart.svg, quadrant_bubble_scatter.svg). Templates are named by visual structure, not by business-model name — keywords like SWOT, BCG, PEST, OKR, Porter's Five Forces, Value Chain are matched via each template's summary field.