### Installing the UI Library

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Install the necessary packages for the UI component library.

```APIDOC
## Installing the UI Library

To install the UI library and Preact, run the following command:

```sh
$ npm install @create-figma-plugin/ui preact
```
```

--------------------------------

### Install UI Dependencies

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Install the required UI library and Preact framework via npm.

```shell
npm install @create-figma-plugin/ui preact
```

--------------------------------

### Install @create-figma-plugin/utilities

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Command to install the @create-figma-plugin/utilities library using npm. This library provides utility functions for Figma/FigJam plugins and widgets.

```sh
npm install @create-figma-plugin/utilities
```

--------------------------------

### Widget Development with Create Figma Plugin Utilities

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Demonstrates how to create interactive Figma widgets using the Create Figma Plugin utilities. It includes state management with `useSyncedState`, defining property menus with `usePropertyMenu`, and handling user interactions to update widget state. The example features a counter widget with increment and reset functionalities, and an option to edit in the UI. Dependencies include '@create-figma-plugin/utilities'.

```tsx
/** @jsx figma.widget.h */
import { once, showUI } from '@create-figma-plugin/utilities'

const { widget } = figma
const { AutoLayout, Text, useSyncedState, usePropertyMenu } = widget

export default function () {
  widget.register(Counter)
}

function Counter() {
  const [count, setCount] = useSyncedState('count', 0)

  const menuItems: WidgetPropertyMenuItem[] = [
    { itemType: 'action', propertyName: 'increment', tooltip: 'Add 1' },
    { itemType: 'action', propertyName: 'reset', tooltip: 'Reset' },
    { itemType: 'separator' },
    { itemType: 'action', propertyName: 'edit', tooltip: 'Edit in UI' }
  ]

  async function handlePropertyMenu({ propertyName }: WidgetPropertyEvent) {
    if (propertyName === 'increment') {
      setCount(count + 1)
    } else if (propertyName === 'reset') {
      setCount(0)
    } else if (propertyName === 'edit') {
      await new Promise<void>((resolve) => {
        showUI({ width: 240, height: 120 }, { count })
        once('SET_COUNT', (newCount: number) => {
          setCount(newCount)
          resolve()
        })
      })
    }
  }

  usePropertyMenu(menuItems, handlePropertyMenu)

  return (
    <AutoLayout
      direction="vertical"
      padding={16}
      spacing={8}
      fill="#FFFFFF"
      cornerRadius={8}
      effect={{
        type: 'drop-shadow',
        blur: 4,
        offset: { x: 0, y: 2 },
        color: { r: 0, g: 0, b: 0, a: 0.1 }
      }}
    >
      <Text fontSize={14} fontWeight="bold">Counter Widget</Text>
      <Text fontSize={32}>{count}</Text>
    </AutoLayout>
  )
}

```

--------------------------------

### Manage Figma Plugin Projects with CLI

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Use the CLI to scaffold new projects from templates and manage the build lifecycle. These commands support interactive setup, minified production builds, and development watch modes.

```bash
# Create a new plugin project interactively
npx create-figma-plugin

# Build the plugin (minified with type checking)
npm run build
# or: build-figma-plugin --typecheck --minify

# Watch mode for development
npm run watch
# or: build-figma-plugin --typecheck --watch
```

--------------------------------

### Creating the UI Component

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Example of a Preact functional component for the UI, receiving data passed from the main plugin context.

```APIDOC
## Creating the UI Component

Create a file for your UI (e.g., `src/ui.tsx`) using Preact components. The `Plugin` component receives props from the `data` object passed to `showUI`.

### Request Example

```tsx
// src/ui.tsx

import { render, Container, Text, VerticalSpace } from '@create-figma-plugin/ui'
import { h } from 'preact'

function Plugin (props: { greeting: string }) {
  return (
    <Container space='medium'>
      <VerticalSpace space='medium' />
      <Text>{props.greeting}</Text>
      <VerticalSpace space='medium' />
    </Container>
  )
}

export default render(Plugin)
```
```

--------------------------------

### Build Layouts with Containers and Spacing

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Provides examples of using layout components like Container, Stack, Columns, and Inline to organize UI elements. These components ensure consistent spacing and alignment across the plugin interface.

```tsx
import {
  Container,
  Stack,
  Columns,
  VerticalSpace,
  Inline,
  MiddleAlign,
  Divider,
  Text,
  Button
} from '@create-figma-plugin/ui'
import { h } from 'preact'

function Plugin() {
  return (
    <Container space="medium">
      <Stack space="small">
        <Text>Item 1</Text>
        <Text>Item 2</Text>
        <Text>Item 3</Text>
      </Stack>

      <VerticalSpace space="large" />
      <Divider />
      <VerticalSpace space="large" />

      <Columns space="small">
        <Button fullWidth>Cancel</Button>
        <Button fullWidth>Submit</Button>
      </Columns>

      <VerticalSpace space="medium" />

      <Inline space="extraSmall">
        <Button>Tag 1</Button>
        <Button>Tag 2</Button>
        <Button>Tag 3</Button>
      </Inline>

      <MiddleAlign>
        <Text>Centered content</Text>
      </MiddleAlign>
    </Container>
  )
}
```

--------------------------------

### Configure a Figma plugin in package.json

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/quick-start.md

Define the plugin configuration within the figma-plugin key in package.json. This example specifies the main entry point and UI file for a Figma-based plugin.

```json
{
  "figma-plugin": {
    "editorType": [
      "figma"
    ],
    "name": "Rectangles",
    "main": "src/main.ts",
    "ui": "src/ui.tsx"
  }
}
```

--------------------------------

### Configure Tailwind CSS for Figma Plugins

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Setup Tailwind CSS by installing dependencies, creating configuration files, and updating package.json scripts to handle CSS generation and watching. The configuration includes specific dark mode settings for Figma environments.

```bash
npm install --save-dev tailwindcss preact concurrently
```

```javascript
/** @type {import('tailwindcss').Config} */
export default {
  content: ['./src/**/*.{ts,tsx}'],
  theme: {
    extend: {},
  },
  plugins: [],
  darkMode: ['class', '.figma-dark']
}
```

```css
@tailwind base;
@tailwind components;
@tailwind utilities;
```

```json
{
  "scripts": {
    "build": "npm run build:css && npm run build:js",
    "build:css": "tailwindcss --input ./src/input.css --output ./src/output.css",
    "build:js": "build-figma-plugin --typecheck --minify",
    "watch": "npm run build:css && concurrently npm:watch:css npm:watch:js",
    "watch:css": "tailwindcss --input ./src/input.css --output ./src/output.css --watch",
    "watch:js": "build-figma-plugin --typecheck --watch"
  }
}
```

--------------------------------

### Render Function for Plugin UI Entry Point

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Defines the entry point for rendering the plugin's user interface using Preact. It utilizes the `render` function from '@create-figma-plugin/ui' to mount a React component. The component can receive initial props, such as `initialCount` in this example. Dependencies include '@create-figma-plugin/ui' and 'preact'.

```tsx
// ui.tsx
import { render, Container, Text } from '@create-figma-plugin/ui'
import { h } from 'preact'

function Plugin(props: { initialCount: number }) {
  return (
    <Container space="medium">
      <Text>Initial count: {props.initialCount}</Text>
    </Container>
  )
}

// Export the rendered component
export default render(Plugin)

// The render function is called automatically by the build system
// with the root element and __SHOW_UI_DATA__ props

```

--------------------------------

### VS Code Schema Validation Setup

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/configuration.md

Instructions for setting up JSON schema validation for your Figma plugin configuration in Visual Studio Code.

```APIDOC
## JSON schema validation in VS Code

Validate the plugin configuration in your `package.json` file using [Create Figma Plugin’s configuration JSON schema](https://yuanqing.github.io/create-figma-plugin/figma-plugin.json).

If you’re using [Visual Studio Code](https://code.visualstudio.com), you can enable autocomplete and inline validation of your plugin configuration by creating a `.vscode/settings.json` file:

```json
{
  "json.schemas": [
    {
      "fileMatch": [
        "package.json"
      ],
      "url": "https://yuanqing.github.io/create-figma-plugin/figma-plugin.json"
    }
  ]
}
```
```

--------------------------------

### Configure a FigJam widget in package.json

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/quick-start.md

Define the widget configuration within the figma-plugin key in package.json. This example sets the editorType to figjam and enables the containsWidget flag.

```json
{
  "figma-plugin": {
    "editorType": [
      "figjam"
    ],
    "containsWidget": true,
    "name": "Notepad",
    "main": "src/main.tsx",
    "ui": "src/ui.tsx"
  }
}
```

--------------------------------

### Initialize UI in Main Entry Point

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Use the showUI utility to launch the plugin interface and pass initial data from the main process.

```typescript
import { showUI } from '@create-figma-plugin/utilities'

export default function () {
  const options = { width: 240, height: 120 }
  const data = { greeting: 'Hello, World!' }
  showUI(options, data)
}
```

--------------------------------

### Showing the UI

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Demonstrates how to display the UI from your plugin's main entry point using the `showUI` utility.

```APIDOC
## Showing the UI

Include a call to `showUI` in your plugin/widget's main entry point. The `data` argument can be used to pass initializing data to the UI.

### Request Example

```ts
// src/main.ts

import { showUI } from '@create-figma-plugin/utilities'

export default function () {
  const options = { width: 240, height: 120 }
  const data = { greeting: 'Hello, World!' }
  showUI(options, data)
}
```
```

--------------------------------

### Configure basic plugin in package.json

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/configuration.md

Demonstrates the minimal configuration required to define a plugin's ID, name, and main entry point within the package.json file.

```json
{
  "figma-plugin": {
    "id": "806532458729477508",
    "name": "Draw Mask Under Selection",
    "main": "src/main.ts"
  }
}
```

--------------------------------

### Bootstrap a new plugin or widget

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/quick-start.md

Use the create-figma-plugin CLI tool to initialize a new project from a template. This command prompts the user to select from various plugin and widget templates.

```shell
$ npx --yes create-figma-plugin
```

--------------------------------

### Configure Plugin Menu and Relaunch Buttons

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/configuration.md

This JSON configuration demonstrates how to define a plugin menu with nested commands and separators, as well as how to register relaunch buttons for specific plugin functionality.

```json
{
  "figma-plugin": {
    "id": "786286754606650597",
    "name": "Organize Layers",
    "menu": [
      {
        "name": "Organize Layers",
        "main": "src/organize-layers/main.ts",
        "ui": "src/organize-layers/ui.tsx"
      },
      "-",
      {
        "name": "Reset Plugin",
        "main": "src/reset-plugin/main.ts"
      }
    ],
    "relaunchButtons": {
      "organizeLayers": {
        "name": "Organize Layers",
        "main": "src/organize-layers/main.ts",
        "ui": "src/organize-layers/ui.tsx"
      }
    }
  }
}
```

--------------------------------

### Configure plugin with UI in package.json

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/configuration.md

Demonstrates how to include a user interface component alongside the main entry point for a Figma plugin.

```json
{
  "figma-plugin": {
    "id": "767379335945775056",
    "name": "Draw Slice Over Selection",
    "main": "src/main.ts",
    "ui": "src/ui.tsx"
  }
}
```

--------------------------------

### Configure UI Path in package.json

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Register the UI entry point file within the figma-plugin configuration in package.json.

```json
{
  "figma-plugin": {
    "name": "Hello World",
    "main": "src/main.ts",
    "ui": "src/ui.tsx"
  }
}
```

--------------------------------

### Configuring the UI File

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Specify the UI file path in the `package.json` under the `figma-plugin.ui` key.

```APIDOC
## Configuring the UI File

In your `package.json`, point to your UI file using the `"ui"` key under the `"figma-plugin"` object.

### Request Example

```json
{
  // ...
  "figma-plugin": {
    // ...
    "name": "Hello World",
    "main": "src/main.ts",
    "ui": "src/ui.tsx"
  }
}
```
```

--------------------------------

### Build Figma Plugin/Widget

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/quick-start.md

Command to initiate the build process for a Figma plugin or widget. This generates necessary files like `manifest.json` and JavaScript bundles in the `build/` directory. The `--output` flag can customize the output location.

```sh
$ npm run build
```

--------------------------------

### Plugin Configuration Options

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/configuration.md

Details the available configuration options for the `package.json` file when creating a Figma plugin.

```APIDOC
## Plugin Configuration Options

This section describes the various properties you can include in your `package.json` file to configure your Figma plugin.

### `codegenLanguages`

(*`Array<CodeLanguage>`*)

*Required for codegen plugins only.* An array of code languages that your codegen plugin supports. Each language is an object with the following keys:

- **`"label"`** (*`string`*) — *Required.* A label for the code language displayed in the Figma UI.
- **`"value"`** (*`string`*) — *Required.* A specific code language.

See the [example](https://figma.com/plugin-docs/manifest/#codegenlanguages).

### `codegenPreferences`

(*`Array<CodegenPreference>`*)

*Optional.* Preferences for your codegen plugin. See the [example](https://figma.com/plugin-docs/manifest/#codegenpreferences).

### `enablePrivatePluginApi`

(*`boolean`*)

*Optional.* Set this to `true` to allow the use of plugin APIs that are only available to private plugins/widgets.

### `enableProposedApi`

(*`boolean`*)

*Optional.* Set this to `true` to allow the use of [Proposed APIs](https://figma.com/plugin-docs/proposed-api/) that are only available during development.

### `build`

(*`string`*)

*Optional.* A shell command that Figma will run before your plugin’s files are loaded.
```

--------------------------------

### Configure Resize Behavior and Direction

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/recipes.md

Demonstrates how to restrict resize direction and set double-click behavior for the UI window.

```ts
useWindowResize(onWindowResize, {
  minWidth: 120,
  maxWidth: 320,
  resizeDirection: 'horizontal'
})

useWindowResize(onWindowResize, {
  minWidth: 120,
  minHeight: 120,
  maxWidth: 320,
  maxHeight: 320,
  resizeBehaviorOnDoubleClick: 'minimize'
})
```

--------------------------------

### Customize Build Configuration

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/recipes.md

Shows how to override esbuild settings for plugin bundles and disable automatic React-to-Preact import swapping.

```js
module.exports = function (buildOptions) {
  return {
    ...buildOptions,
    plugins: buildOptions.plugins.filter(function (plugin) {
      return plugin.name !== 'preact-compat'
    })
  }
}
```

--------------------------------

### Load Plugin Settings

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Asynchronously loads plugin or widget settings stored locally using the provided settings key. If no settings are found, default settings are returned. Requires @create-figma-plugin/utilities.

```typescript
import {
  loadSettingsAsync
} from '@create-figma-plugin/utilities'

async function loadSettingsAsync<Settings>(defaultSettings: Settings, settingsKey?: string): Promise<Settings>
```

--------------------------------

### Configure Build and Watch Scripts for Figma Plugins

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/quick-start.md

Defines the 'build' and 'watch' scripts in `package.json` to automate the compilation and bundling of Figma plugins or widgets using the `build-figma-plugin` CLI. These scripts leverage esbuild for fast builds and include TypeScript type-checking.

```json
{
  "scripts": {
    "build": "build-figma-plugin --typecheck --minify",
    "watch": "build-figma-plugin --typecheck --watch"
  }
}
```

--------------------------------

### Plugin Manifest Configuration

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/configuration.md

Overview of key manifest properties including menu structure, relaunch buttons, and security-related settings.

```APIDOC
## Plugin Manifest Configuration

### Description
Defines the structure and capabilities of a Figma plugin via the manifest file.

### Properties
- **menu** (array) - Optional - Defines sub-menu commands.
- **relaunchButtons** (object) - Optional - Defines commands accessible via relaunch buttons.
- **capabilities** (array) - Optional - Specifies required plugin capabilities (e.g., codegen, inspect).
- **permissions** (array) - Optional - Specifies required user/file permissions.
- **documentAccess** (string) - Optional - Configures dynamic page loading behavior.
- **networkAccess** (object) - Required - Defines allowed domains for network requests.

### Example Configuration
```json
{
  "figma-plugin": {
    "id": "837846252158418235",
    "menu": [
      { "name": "Command", "main": "src/main.ts" }
    ],
    "networkAccess": {
      "allowedDomains": ["https://api.example.com"],
      "reasoning": "Fetching external data"
    }
  }
}
```
```

--------------------------------

### UI Components: Dropdown for Menu Selection

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Shows how to use the Dropdown component from '@create-figma-plugin/ui' to create selectable menus with headers, separators, and disabled options. Requires 'preact' and '@create-figma-plugin/ui'.

```tsx
import { Dropdown, DropdownOption } from '@create-figma-plugin/ui'
import { h } from 'preact'
import { useState, useCallback } from 'preact/hooks'

function Plugin() {
  const [alignment, setAlignment] = useState<string | null>('left')

  const options: DropdownOption[] = [
    { header: 'Horizontal' },
    { value: 'left', text: 'Align Left' },
    { value: 'center', text: 'Align Center' },
    { value: 'right', text: 'Align Right' },
    '-', // separator
    { header: 'Vertical' },
    { value: 'top', text: 'Align Top' },
    { value: 'middle', text: 'Align Middle' },
    { value: 'bottom', text: 'Align Bottom' },
    '-',
    { value: 'stretch', text: 'Stretch', disabled: true }
  ]

  const handleChange = useCallback((newValue: string) => {
    setAlignment(newValue)
    console.log('Selected:', newValue)
  }, [])

  return (
    <Dropdown
      value={alignment}
      options={options}
      onValueChange={handleChange}
      placeholder="Select alignment..."
    />
  )
}
```

--------------------------------

### Configure multiple plugin commands

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/recipes.md

Shows how to define multiple commands and separators in the figma-plugin manifest configuration. This allows plugins to expose different features in the Figma sub-menu.

```json
{
  "figma-plugin": {
    "id": "837846252158418235",
    "name": "Flatten Selection to Bitmap",
    "menu": [
      {
        "name": "Flatten Selection to Bitmap",
        "main": "src/flatten-selection-to-bitmap/main.ts",
        "ui": "src/flatten-selection-to-bitmap/ui.ts"
      },
      "-",
      {
        "name": "Settings",
        "main": "src/settings/main.ts",
        "parameters": [
          {
            "key": "resolution",
            "description": "Enter a bitmap resolution"
          }
        ]
      }
    ]
  }
}
```

--------------------------------

### showUI Function

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Renders the plugin UI in a modal window and passes initial data from the main plugin context to the UI layer.

```APIDOC
## showUI(options, data)

### Description
Displays the plugin UI modal and injects initial state data into the UI context.

### Parameters
- **options** (object) - Required - Configuration for the modal (width, height, title, visible).
- **data** (object) - Optional - Initial data passed to the UI, accessible via the `__SHOW_UI_DATA__` global variable.

### Request Example
```typescript
showUI({ width: 320, height: 240, title: 'My Plugin' }, { nodeCount: 5 });
```

### UI Access
```typescript
declare const __SHOW_UI_DATA__: { nodeCount: number };
console.log(__SHOW_UI_DATA__.nodeCount); // 5
```
```

--------------------------------

### Implement Resizable UI Window with useWindowResize

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/recipes.md

Uses the useWindowResize hook in the UI component to emit resize events and handles them in the main thread using figma.ui.resize.

```tsx
import { render, useWindowResize } from '@create-figma-plugin/ui'
import { emit } from '@create-figma-plugin/utilities'
import { h } from 'preact'

function Plugin () {
  function onWindowResize(windowSize: { width: number; height: number }) {
    emit('RESIZE_WINDOW', windowSize)
  }
  useWindowResize(onWindowResize, {
    minWidth: 120,
    minHeight: 120,
    maxWidth: 320,
    maxHeight: 320
  })
}
```

```ts
import { on, showUI } from '@create-figma-plugin/utilities'

export default function () {
  on('RESIZE_WINDOW', function (windowSize: { width: number; height: number }) {
    const { width, height } = windowSize
    figma.ui.resize(width, height)
  })
  showUI({ width: 240, height: 240 })
}
```

--------------------------------

### Manage Plugin Settings with loadSettingsAsync and saveSettingsAsync

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Demonstrates how to persist plugin configuration data to Figma's client storage. It supports default values and custom storage keys for managing multiple setting groups.

```typescript
import { loadSettingsAsync, saveSettingsAsync } from '@create-figma-plugin/utilities'

interface PluginSettings {
  defaultColor: string
  gridSize: number
  showGuides: boolean
}

const defaultSettings: PluginSettings = {
  defaultColor: 'FF5733',
  gridSize: 8,
  showGuides: true
}

export default async function () {
  const settings = await loadSettingsAsync<PluginSettings>(defaultSettings)
  console.log(settings.gridSize)

  settings.gridSize = 16
  settings.defaultColor = '00FF00'
  await saveSettingsAsync<PluginSettings>(settings)

  await saveSettingsAsync(settings, 'my-plugin-v2-settings')
}
```

--------------------------------

### Communicate between Main and UI contexts

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/recipes.md

Demonstrates using the @create-figma-plugin/utilities library to register event handlers in the main context and emit events from the UI context. This pattern allows for seamless data transfer between the plugin backend and the user interface.

```typescript
// src/main.ts
import { once } from '@create-figma-plugin/utilities';

export default function () {
  function handleSubmit (data) {
    console.log(data); //=> { greeting: 'Hello, World!' }
  }
  once('SUBMIT', handleSubmit);
}
```

```tsx
// src/ui.tsx
import { render, Button } from '@create-figma-plugin/ui';
import { emit } from '@create-figma-plugin/utilities';
import { h } from 'preact';

function Plugin () {
  function handleClick () {
    const data = { greeting: 'Hello, World!' };
    emit('SUBMIT', data);
  }
  return <Button onClick={handleClick}>Submit</Button>;
}

export default render(Plugin);
```

--------------------------------

### Build and Watch Figma Plugin

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/create-figma-plugin/templates/plugin/preact-tailwindcss/README.md

Commands to compile the plugin source code into a manifest and bundle, or to enable automatic rebuilding during development.

```bash
npm run build
```

```bash
npm run watch
```

--------------------------------

### Implement Custom UI Rendering

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Shows how to implement a custom UI by exporting a function that receives the root HTMLElement and data, allowing for manual DOM manipulation.

```typescript
export default function (rootNode: HTMLElement, data: { greeting: string }) {
  rootNode.innerHTML = `<p>${data.greeting}</p>`
}
```

--------------------------------

### UI Components: Button with Loading States

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Illustrates the usage of the Button component from '@create-figma-plugin/ui', including primary, secondary, danger, and full-width variants, along with handling loading and disabled states. Requires 'preact' and '@create-figma-plugin/ui'.

```tsx
import { Button, Container, VerticalSpace } from '@create-figma-plugin/ui'
import { h } from 'preact'
import { useState, useCallback } from 'preact/hooks'

function Plugin() {
  const [loading, setLoading] = useState(false)

  const handleClick = useCallback(async () => {
    setLoading(true)
    await doSomething()
    setLoading(false)
  }, [])

  return (
    <Container space="medium">
      <VerticalSpace space="large" />
      <Button onClick={handleClick} loading={loading}>
        Primary Action
      </Button>
      <VerticalSpace space="small" />
      <Button onClick={handleClose} secondary>
        Cancel
      </Button>
      <VerticalSpace space="small" />
      <Button onClick={handleDelete} danger>
        Delete
      </Button>
      <VerticalSpace space="small" />
      <Button fullWidth disabled={loading}>
        Full Width Button
      </Button>
    </Container>
  )
}
```

--------------------------------

### Image Utilities: Create Image Paints and Process Image Data

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Demonstrates how to create image paints from byte data and manipulate images using canvas elements. It includes functions for creating image paints, converting bytes to a canvas for processing, and converting the canvas back to bytes. Dependencies include '@create-figma-plugin/utilities'.

```typescript
import {
  createImagePaint,
  createCanvasElementFromBytesAsync,
  readBytesFromCanvasElementAsync
} from '@create-figma-plugin/utilities'

// Create image paint from bytes
const imageBytes = await figma.getImageByHash('abc123')?.getBytesAsync()
if (imageBytes) {
  const imagePaint = createImagePaint(imageBytes)
  const rect = figma.createRectangle()
  rect.fills = [imagePaint]
}

// In UI: Convert bytes to canvas for manipulation
async function processImage(bytes: Uint8Array) {
  const canvas = await createCanvasElementFromBytesAsync(bytes)
  const ctx = canvas.getContext('2d')!

  // Apply grayscale filter
  const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height)
  // ... process pixels ...
  ctx.putImageData(imageData, 0, 0)

  // Convert back to bytes
  const processedBytes = await readBytesFromCanvasElementAsync(canvas, 'image/png')
  return processedBytes
}
```

--------------------------------

### Implement Boolean Inputs with Checkbox and Toggle

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Demonstrates how to use Checkbox and Toggle components, including support for mixed states when handling multiple selections. It utilizes Preact state hooks to manage input values.

```tsx
import { Checkbox, Toggle, MIXED_BOOLEAN } from '@create-figma-plugin/ui'
import { h } from 'preact'
import { useState } from 'preact/hooks'

function Plugin() {
  const [checked, setChecked] = useState(false)
  const [mixed, setMixed] = useState<boolean | typeof MIXED_BOOLEAN>(MIXED_BOOLEAN)
  const [enabled, setEnabled] = useState(true)

  return (
    <>
      <Checkbox value={checked} onValueChange={setChecked}>
        Include hidden layers
      </Checkbox>

      <Checkbox value={mixed} onValueChange={setMixed}>
        Lock aspect ratio (mixed)
      </Checkbox>

      <Toggle value={enabled} onValueChange={setEnabled}>
        <Text>Enable auto-layout</Text>
      </Toggle>
    </>
  )
}
```

--------------------------------

### Create Modal Dialogs with Focus Trapping

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Shows how to implement a Modal component that supports focus trapping, escape key handling, and overlay clicks. It requires managing the open state via hooks and defining callback functions for user interactions.

```tsx
import { Modal, Button, Container, Text, VerticalSpace } from '@create-figma-plugin/ui'
import { h } from 'preact'
import { useState, useCallback } from 'preact/hooks'

function Plugin() {
  const [isOpen, setIsOpen] = useState(false)

  const handleOpen = useCallback(() => setIsOpen(true), [])
  const handleClose = useCallback(() => setIsOpen(false), [])
  const handleConfirm = useCallback(() => {
    console.log('Confirmed!')
    setIsOpen(false)
  }, [])

  return (
    <>
      <Button onClick={handleOpen}>Open Modal</Button>

      <Modal
        open={isOpen}
        onCloseButtonClick={handleClose}
        onEscapeKeyDown={handleClose}
        onOverlayClick={handleClose}
        title="Confirm Action"
        position="center"
      >
        <Container space="medium">
          <VerticalSpace space="large" />
          <Text>Are you sure you want to proceed?</Text>
          <VerticalSpace space="large" />
          <Button onClick={handleConfirm}>Confirm</Button>
          <VerticalSpace space="small" />
          <Button onClick={handleClose} secondary>Cancel</Button>
          <VerticalSpace space="medium" />
        </Container>
      </Modal>
    </>
  )
}
```

--------------------------------

### Import Tailwind CSS in Figma Plugin UI

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Demonstrates how to import the generated CSS file into a Preact component using the '!' prefix to inline styles without hashing class names.

```tsx
import { render } from '@create-figma-plugin/ui'
import { h } from 'preact'
import '!./output.css'

function Plugin () {
  return (
    <h1 class="text-3xl font-bold underline">
      Hello, World!
    </h1>
  )
}

export default render(Plugin)
```

--------------------------------

### Widget Development

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Utilities for creating interactive Figma widgets with synced state and property menus.

```APIDOC
## Widget Development

### Description
Provides hooks like `useSyncedState` and `usePropertyMenu` to build interactive widgets that persist data across Figma sessions.

### Parameters
- **useSyncedState** (string, any) - Required - Key and initial value for persistent widget state.
- **usePropertyMenu** (array, function) - Required - Configuration for the widget's right-click menu items and event handlers.

### Request Example
const [count, setCount] = useSyncedState('count', 0);
usePropertyMenu(menuItems, handlePropertyMenu);
```

--------------------------------

### StatCounter Initialization (JavaScript)

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/templates/partials/analytics.html

This JavaScript code initializes StatCounter tracking. It sets project ID, invisibility status, and security key for website analytics.

```javascript
var sc_project = 12531644;
var sc_invisible = 1;
var sc_security = "95d0263e";
```

--------------------------------

### Inline Image Assets in Plugin UI

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/recipes.md

Demonstrates how to import and use image files in a Preact UI component, which are automatically converted to Base64 data URLs.

```tsx
import { render } from '@create-figma-plugin/ui';
import { h } from 'preact';
import image from './image.png';

function Plugin () {
  return <img src={image} />;
}

export default render(Plugin);
```

--------------------------------

### Event System (emit, on, once)

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

The event system facilitates type-safe communication between the main plugin sandbox and the UI iframe using a standardized event handler pattern.

```APIDOC
## Event System Communication

### Description
Provides type-safe message passing between the main plugin thread and the UI layer using defined event handlers.

### Methods
- **emit<T>(name, ...args)**: Dispatches an event to the other context.
- **on<T>(name, handler)**: Registers a persistent event listener.
- **once<T>(name, handler)**: Registers a one-time event listener.

### Parameters
- **name** (string) - Required - The unique event identifier defined in the handler interface.
- **handler** (function) - Required - The callback function executed when the event is received.

### Example
```typescript
// Emit event from UI to Main
emit<CreateRectanglesHandler>('CREATE_RECTANGLES', 5, { r: 1, g: 0, b: 0 });

// Listen in Main
once<CreateRectanglesHandler>('CREATE_RECTANGLES', (count, color) => { ... });
```
```

--------------------------------

### UI Components: Textbox and TextboxNumeric for Input

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Demonstrates the Textbox and TextboxNumeric components from '@create-figma-plugin/ui' for handling text input and numeric input with validation, icons, and units. Requires 'preact' and '@create-figma-plugin/ui'.

```tsx
import {
  Textbox,
  TextboxNumeric,
  Text,
  Muted,
  VerticalSpace,
  IconSearch16
} from '@create-figma-plugin/ui'
import { h } from 'preact'
import { useState } from 'preact/hooks'

function Plugin() {
  const [name, setName] = useState('')
  const [width, setWidth] = useState<number | null>(100)
  const [widthString, setWidthString] = useState('100')

  return (
    <>
      <Text><Muted>Layer Name</Muted></Text>
      <VerticalSpace space="small" />
      <Textbox
        value={name}
        onValueInput={setName}
        placeholder="Enter name..."
        icon={<IconSearch16 />}
      />

      <VerticalSpace space="medium" />
      <Text><Muted>Width</Muted></Text>
      <VerticalSpace space="small" />
      <TextboxNumeric
        value={widthString}
        onValueInput={setWidthString}
        onNumericValueInput={setWidth}
        minimum={0}
        maximum={1000}
        suffix=" px"
        integer
      />
    </>
  )
}
```

--------------------------------

### Render Plugin UI with showUI

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Renders a modal UI within Figma and passes initial data to the UI layer. The utility handles theme colors and provides a global object for accessing initial state.

```typescript
// main.ts
import { showUI } from '@create-figma-plugin/utilities'

export default function () {
  const selectedNodes = figma.currentPage.selection

  showUI(
    {
      width: 320,
      height: 240,
      title: 'My Plugin',
      visible: true
    },
    {
      nodeCount: selectedNodes.length,
      pageId: figma.currentPage.id
    }
  )
}

// ui.tsx - Access initial data
declare const __SHOW_UI_DATA__: { nodeCount: number; pageId: string }

function Plugin() {
  const { nodeCount, pageId } = __SHOW_UI_DATA__
  return <div>Selected {nodeCount} nodes on page {pageId}</div>
}
```

--------------------------------

### Object Utilities

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Functions for deep cloning and comparing objects.

```APIDOC
## cloneObject<T>(object)

### Description
Creates a deep copy of the given object.

### Parameters
- **object** (T) - Required

### Response
- **T** - The deep copied object.
```

```APIDOC
## compareObjects(a, b)

### Description
Performs a deep equality comparison of two objects.

### Parameters
- **a** (any) - Required
- **b** (any) - Required

### Response
- **boolean** - True if objects are equal.
```

--------------------------------

### Event Handling Utilities (emit, on, once)

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Functions for managing event communication between the main Figma context and the UI context. Supports emitting events, listening for events, and listening for events that trigger only once.

```typescript
import {
  emit,
  on,
  once
} from '@create-figma-plugin/utilities'
```

```typescript
function emit<Handler>(name: Handler['name'], ...args: Parameters<Handler['handler']>): void
// Emits an event by name, optionally passing arguments. Can be called from main context to UI or vice-versa.
```

```typescript
function on<Handler>(name: Handler['name'], handler: Handler['handler']): () => void
// Registers an event handler for a specific event name. Returns a function to deregister the handler.
```

```typescript
function once<Handler>(name: Handler['name'], handler: Handler['handler']): () => void
// Registers an event handler that will be executed at most once for the given event name. Returns a function to deregister the handler.
```

--------------------------------

### Settings Persistence API

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

APIs for loading and saving plugin settings to Figma's client storage, ensuring persistence across sessions.

```APIDOC
## Settings Persistence - loadSettingsAsync, saveSettingsAsync

### Description
Loads and saves plugin settings to Figma's client storage, persisted locally on the user's computer.

### Method
`loadSettingsAsync<T>(defaultSettings: T): Promise<T>`
`saveSettingsAsync<T>(settings: T, key?: string): Promise<void>`

### Endpoint
N/A (Client-side storage)

### Parameters
#### loadSettingsAsync
- **defaultSettings** (T) - Required - Default settings object to use if no saved settings are found.

#### saveSettingsAsync
- **settings** (T) - Required - The settings object to save.
- **key** (string) - Optional - A custom storage key to differentiate multiple settings groups.

### Request Example
```typescript
import { loadSettingsAsync, saveSettingsAsync } from '@create-figma-plugin/utilities'

interface PluginSettings {
  defaultColor: string
  gridSize: number
  showGuides: boolean
}

const defaultSettings: PluginSettings = {
  defaultColor: 'FF5733',
  gridSize: 8,
  showGuides: true
}

// Load settings with defaults
const settings = await loadSettingsAsync<PluginSettings>(defaultSettings)

// Update and save settings
settings.gridSize = 16
settings.defaultColor = '00FF00'
await saveSettingsAsync<PluginSettings>(settings)

// Use custom storage key
await saveSettingsAsync(settings, 'my-plugin-v2-settings')
```

### Response
#### Success Response (loadSettingsAsync)
- **settings** (T) - The loaded settings object.

#### Success Response (saveSettingsAsync)
- **void** - Operation successful.

#### Response Example (loadSettingsAsync)
```json
{
  "defaultColor": "FF5733",
  "gridSize": 8,
  "showGuides": true
}
```
```

--------------------------------

### Configure Relaunch Buttons

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Manages the registration and removal of relaunch buttons that appear in the Figma UI for specific nodes.

```typescript
import { setRelaunchButton, unsetRelaunchButton } from '@create-figma-plugin/utilities'

for (const node of figma.currentPage.selection) {
  setRelaunchButton(node, 'editText', {
    description: 'Edit the text content of this layer'
  })
}

unsetRelaunchButton(figma.currentPage.selection[0], 'editText')
```

--------------------------------

### Set Relaunch Button (Figma API)

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Attaches a relaunch button to a Figma node for a specific command. Existing relaunch buttons are preserved. Configuration is managed via package.json. An optional description can be provided for display in the Figma UI.

```typescript
function setRelaunchButton(node: BaseNode, relaunchButtonId: string, options?: { description?: string }): void;
```

--------------------------------

### Show Figma UI

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Renders the plugin/widget UI in a modal window within the Figma interface. Allows specifying dimensions, title, and visibility, and can pass initial data to the UI. Requires @create-figma-plugin/utilities.

```typescript
import {
  showUI
} from '@create-figma-plugin/utilities'

function showUI<Data>(options: ShowUIOptions, data?: Data): void
```

--------------------------------

### Image and Canvas Element Creation Utilities

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Provides functions to create and manipulate image and canvas elements from various data formats like Blobs, Bytes, and existing ImageElements. Also includes a utility to create an image paint.

```typescript
import {
  createCanvasElementFromBlobAsync,
  createCanvasElementFromBytesAsync,
  createCanvasElementFromImageElement,
  createImageElementFromBlobAsync,
  createImageElementFromBytesAsync,
  createImagePaint,
  readBytesFromCanvasElementAsync
} from '@create-figma-plugin/utilities'
```

```typescript
function createCanvasElementFromBlobAsync(blob: Blob): Promise<HTMLCanvasElement>
// Creates an HTMLCanvasElement from a Blob representing an image.
```

```typescript
function createCanvasElementFromBytesAsync(bytes: Uint8Array): Promise<HTMLCanvasElement>
// Creates an HTMLCanvasElement from an array of bytes representing an image.
```

```typescript
function createCanvasElementFromImageElement(imageElement: HTMLImageElement): HTMLCanvasElement
// Creates an HTMLCanvasElement from an existing HTMLImageElement.
```

```typescript
function createImageElementFromBlobAsync(blob: Blob): Promise<HTMLImageElement>
// Creates an HTMLImageElement from a Blob representing an image.
```

```typescript
function createImageElementFromBytesAsync(bytes: Uint8Array): Promise<HTMLImageElement>
// Creates an HTMLImageElement from an array of bytes representing an image.
```

```typescript
function createImagePaint(image: Uint8Array | Blob | string): ImagePaint
// Creates an ImagePaint object that can be used for fills or strokes in Figma.
```

```typescript
function readBytesFromCanvasElementAsync(canvasElement: HTMLCanvasElement): Promise<Uint8Array>
// Reads the image data from an HTMLCanvasElement as an array of bytes.
```

--------------------------------

### Using Custom CSS without Hashing

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Option to inline CSS files directly without hashing class names by prefixing the import path with `!`.

```APIDOC
## Using Custom CSS without Hashing

To inline a CSS file without hashing its class names, add a `!` prefix to the import path.

### Request Example

```tsx
// src/ui.tsx

import { render } from '@create-figma-plugin/ui'
import { h } from 'preact'
import '!./styles.css'

function Plugin () {
  // ...
  return (
    <div class="container">
      {/* ... */}
    </div>
  )
}

export default render(Plugin)
```
```

--------------------------------

### Save Plugin Settings

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/utilities.md

Asynchronously saves plugin or widget settings locally using the provided settings key. Settings are stored in figma.clientStorage. Requires @create-figma-plugin/utilities.

```typescript
import {
  saveSettingsAsync
} from '@create-figma-plugin/utilities'

async function saveSettingsAsync<Settings>(settings: Settings, settingsKey?: string): Promise<void>
```

--------------------------------

### Using Custom CSS with CSS Modules

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/ui.md

Integrate custom CSS into your UI components using CSS Modules for scoped styling.

```APIDOC
## Using Custom CSS with CSS Modules

Out of the box, the `build-figma-plugin` CLI supports CSS Modules. Import your CSS file and use the imported styles object to apply class names.

### Request Example

```css
/* src/styles.css */

.container {
  background-color: var(--figma-color-bg-secondary);
}
```

```tsx
// src/ui.tsx

import { render } from '@create-figma-plugin/ui'
import { h } from 'preact'
import styles from './styles.css'

function Plugin () {
  // ...
  return (
    <div class={styles.container}>
      {/* ... */}
    </div>
  )
}

export default render(Plugin)
```

By default, class names are hashed to ensure uniqueness. Refer to the base CSS file in `@create-figma-plugin/ui` for available CSS variables.
```

--------------------------------

### Layout Components

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

Utility components for structuring plugin UI, including containers, stacks, columns, and spacing helpers.

```APIDOC
## Layout Components

### Description
A collection of layout primitives to manage spacing and alignment within the plugin UI.

### Components
- **Container**: Wraps content with consistent padding.
- **Stack**: Vertically stacks children with defined spacing.
- **Columns**: Arranges children in a horizontal grid.
- **VerticalSpace**: Adds vertical margin between elements.
- **Inline**: Arranges children horizontally with wrapping.
- **MiddleAlign**: Vertically centers content.

### Example
```tsx
<Container space="medium">
  <Stack space="small">
    <Text>Item 1</Text>
    <Text>Item 2</Text>
  </Stack>
</Container>
```
```

--------------------------------

### Render Plugin and Widget Lists with EJS

Source: https://github.com/yuanqing/create-figma-plugin/blob/main/packages/website/docs/reference-plugins-and-widgets.md

Uses EJS templating to iterate over plugin or widget data arrays. It generates HTML list items containing metadata, author links, and conditional GitHub repository links.

```ejs
<% for (const { authors, description, githubUrl, id, name } of plugins) { %>
<li class="plugin" data-open-source="<%= githubUrl === null ? '0' : '1' %>">
  <a href="https://figma.com/community/plugin/<%- id %>" target="_blank" class="plugin__image">
    <div class="image image--large"><img src="https://figma.com/community/plugin/<%- id %>/icon" /></div>
  </a>
  <div class="plugin__main">
    <div class="plugin__name"><a href="https://figma.com/community/plugin/<%- id %>" target="_blank"><%- name %></a></div>
    <p class="plugin__description"><%- description %></p>
  </div>
</li>
<% } %>
```

--------------------------------

### render Function

Source: https://context7.com/yuanqing/create-figma-plugin/llms.txt

The render function is the standard entry point for mounting Preact components into the Figma plugin UI window.

```APIDOC
## render Function

### Description
Mounts a Preact component to the plugin UI. The build system automatically injects necessary data into the component props.

### Parameters
- **Component** (function) - Required - The Preact functional component to render.

### Request Example
export default render(Plugin);
```