字体层级 (Typography Scale)

推荐字体 : Inter (英文), Noto Sans SC (中文)

间距系统 (Spacing)

基于 4px 网格：

• xs: 4px
• sm: 8px
• md: 12px
• lg: 16px
• xl: 24px
• 2xl: 32px
• 3xl: 48px

圆角规范 (Border Radius)

阴影系统 (Shadows)

{
  "shadow-sm": {
    "type": "shadow",
    "shadowType": "outer",
    "color": "#0000000D",
    "blur": 2,
    "offset": {"x": 0, "y": 1}
  },
  "shadow-md": {
    "type": "shadow",
    "shadowType": "outer",
    "color": "#0000000A",
    "blur": 6,
    "offset": {"x": 0, "y": 4}
  },
  "shadow-lg": {
    "type": "shadow",
    "shadowType": "outer",
    "color": "#00000014",
    "blur": 15,
    "offset": {"x": 0, "y": 8}
  }
}

组件规范

Button 按钮

Primary Button

{
  "type": "frame",
  "name": "Button/Primary",
  "reusable": true,
  "height": 40,
  "layout": "horizontal",
  "padding": [16, 10],
  "gap": 8,
  "alignItems": "center",
  "justifyContent": "center",
  "fill": "#18181B",
  "cornerRadius": 8,
  "effect": {
    "type": "shadow",
    "shadowType": "outer",
    "color": "#0000001A",
    "blur": 2,
    "offset": {"x": 0, "y": 1}
  }
}
// 文本: fill="#FFFFFF", fontFamily="Inter", fontSize=14, fontWeight=500

Secondary Button

{
  "fill": "#F4F4F5",
  "stroke": "#E4E4E7",
  "strokeThickness": 1,
  "cornerRadius": 8
}
// 文本: fill="#18181B"

Ghost Button

{
  "fill": "transparent",
  "cornerRadius": 8
}
// Hover: fill="#F4F4F5"

Destructive Button

{
  "fill": "#EF4444",
  "cornerRadius": 8
}
// 文本: fill="#FFFFFF"

Card 卡片

{
  "type": "frame",
  "name": "Card",
  "reusable": true,
  "layout": "vertical",
  "padding": 16,
  "gap": 12,
  "fill": "#FFFFFF",
  "stroke": "#E4E4E7",
  "strokeThickness": 1,
  "cornerRadius": 12,
  "effect": {
    "type": "shadow",
    "shadowType": "outer",
    "color": "#0000000A",
    "blur": 4,
    "offset": {"x": 0, "y": 2}
  }
}

Input 输入框

{
  "type": "frame",
  "name": "Input",
  "reusable": true,
  "height": 40,
  "layout": "horizontal",
  "padding": [12, 10],
  "gap": 8,
  "alignItems": "center",
  "fill": "#FFFFFF",
  "stroke": "#E4E4E7",
  "strokeThickness": 1,
  "cornerRadius": 8
}
// Focus 状态: stroke="#18181B", strokeThickness=2

Avatar 头像

{
  "type": "frame",
  "name": "Avatar",
  "reusable": true,
  "width": 40,
  "height": 40,
  "cornerRadius": 9999,
  "fill": "#F4F4F5",
  "layout": "vertical",
  "alignItems": "center",
  "justifyContent": "center"
}

Badge 徽章

{
  "type": "frame",
  "name": "Badge",
  "reusable": true,
  "height": 22,
  "layout": "horizontal",
  "padding": [6, 8],
  "alignItems": "center",
  "justifyContent": "center",
  "fill": "#F4F4F5",
  "stroke": "#E4E4E7",
  "strokeThickness": 1,
  "cornerRadius": 6
}
// 文本: fontSize=10, fontWeight=500

图标规范

⚠️ 重要 : Pencil MCP 使用 Material Symbols Rounded 图标字体，不是 Lucide！

基本用法

{
  "type": "icon_font",
  "iconFontFamily": "Material Symbols Rounded",
  "iconFontName": "home",
  "fontSize": 24,
  "width": 24,
  "height": 24,
  "fill": "#71717A"
}

注意: 必须同时设置 fontSize、width 和 height 属性，否则图标可能不显示！

常用图标速查表

图标尺寸规范

完整示例

// 创建一个带图标的按钮
iconBtn=I(parent, {
  type: "frame",
  width: 48,
  height: 48,
  layout: "vertical",
  alignItems: "center",
  justifyContent: "center",
  fill: "#1E2A2F",
  cornerRadius: 9999
})
icon=I(iconBtn, {
  type: "icon_font",
  iconFontFamily: "Material Symbols Rounded",
  iconFontName: "add",
  fontSize: 24,
  width: 24,
  height: 24,
  fill: "#FFFFFF"
})

图片素材处理

使用 G() 操作生成图片

Pencil MCP 提供 G() 操作来生成或获取图片，支持两种方式：

AI 生成图片 (推荐用于插画、头像、图标)

// 先创建一个 frame 容器
avatar=I(parent, {type: "frame", width: 48, height: 48, cornerRadius: 9999})
// 使用 AI 生成图片填充
G(avatar, "ai", "cute cartoon boy avatar, friendly smile, warm colors, children illustration style")

Stock 图片 (推荐用于真实照片)

// 获取 Unsplash 图片
heroImg=I(parent, {type: "frame", width: 400, height: 300})
G(heroImg, "stock", "modern office workspace laptop natural light")

Prompt 编写技巧

图片使用注意事项

1. 没有 image 节点类型 - 图片只能作为 frame/rectangle 的填充
2. 先创建容器 - 必须先用 I() 创建 frame，再用 G() 应用图片
3. 设置正确尺寸 - frame 的 width/height 决定显示尺寸
4. 圆角裁剪 - 设置 cornerRadius: 9999 可实现圆形图片

文本处理规范

防止文本溢出

当文本内容较长时，必须设置以下属性防止溢出：

{
  "type": "text",
  "content": "这是一段很长的文本内容...",
  "width": "fill_container",
  "textGrowth": "fixed-width",
  "lineHeight": 1.5
}

textGrowth 属性说明

常见文本样式

// 段落文本 (自动换行)
paragraph=I(parent, {
  type: "text",
  content: "这是一段较长的描述文本，需要自动换行显示。",
  width: "fill_container",
  textGrowth: "fixed-width",
  fontSize: 14,
  lineHeight: 1.5,
  fill: "#71717A"
})

// 标题文本 (单行)
title=I(parent, {
  type: "text",
  content: "标题文本",
  fontSize: 18,
  fontWeight: 600,
  fill: "#1E2A2F"
})

设计工作流

第一步：设置设计系统

1. 打开或创建 .pen 文件
2. 使用 mcp_pencil_set_variables 设置颜色变量
3. 创建可复用组件

第二步：创建页面结构

1. 创建页面 Frame (390x844 for iPhone)
2. 设置背景色 #FAFAFA
3. 使用垂直布局 layout: "vertical"

第三步：使用组件构建 UI

1. 通过 ref 引用可复用组件
2. 使用 U() 覆盖特定属性
3. 保持设计一致性

第四步：验证设计

1. 使用 mcp_pencil_get_screenshot 截图检查
2. 验证对齐、间距、颜色
3. 检查字体和图标一致性

第五步：迭代优化

1. 根据反馈调整细节
2. 确保无视觉错误
3. 输出最终设计稿

批量更新样式

使用 mcp_pencil_replace_all_matching_properties 批量替换属性：

mcp_pencil_replace_all_matching_properties({
  filePath: "design.pen",
  parents: ["pageId1", "pageId2"],
  properties: {
    "fillColor": {"#FFF9F2": "#FAFAFA"},
    "fontFamily": {"Fredoka": "Inter"},
    "cornerRadius": {24: 12}
  }
})

质量检查清单

• 所有页面背景统一 (#FAFAFA)
• 所有卡片有边框 (1px #E4E4E7)
• 阴影效果一致 (blur 2-6px)
• 按钮圆角统一 (8px)
• 字体统一 (Inter)
• 图标库统一 (Lucide)
• 字体层级正确 (12/14/16/18/20/24px)
• 间距遵循 4px 网格

Weekly Installs

98

Repository

allenai2014/pen…i-design

GitHub Stars

51

First Seen

Jan 26, 2026

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Installed on

opencode91

gemini-cli90

codex90

github-copilot82

kimi-cli73

amp70