Initialize ECharts. design system components chart placeholders and data-viz tokens in Pencil.
Constraint: Only use this skill when the user explicitly mentions "Pencil" and "ECharts" or when orchestrating a Pencil design system initialization task for charts.
Use this skill when you need to initialize a chart/design system based on ECharts specifications in a .pen file: set up chart theme colors and create placeholder frames for chart types (line, bar, pie, etc.).
This skill outputs a PENCIL_PLAN. The Agent then calls Pencil MCP tools in order: open_document, set_variables, batch_design, optionally get_screenshot.
Use mcp__pencil__set_variables to register ECharts-related design tokens (chart theme colors, font). Follow .pen file schema.
Chart colors (palette)
echarts-color-1: #5470c6echarts-color-2: #91cc75echarts-color-3: #fac858echarts-color-4: #ee6666echarts-color-5: #73c0deAxis / grid / text
echarts-axis-line-color: #6e7079echarts-split-line-color: #e0e6f1echarts-text-color: #6e7079echarts-font-size: 12pxFill from ECharts theme docs if more tokens are needed.
Use mcp__pencil__batch_design to create a "Charts Overview" frame with placeholder sections for chart types (data-viz components):
Organize frames using Auto Layout. Keep each batch_design call to maximum 25 operations.
set_variables with replace: false unless a full reset is requested.pencil, echarts, chart, design system, init, variables, data visualization
references/contract.md – Design tokens and chart type naming.references/official.md – Link to official documentation.references/examples.md – Example PENCIL_PLAN.references/components.md – Chart type specifications.