@m3e/icon

@m3e/icon

The m3e-icon component makes it easy to use Material Symbols in your application. It supports outlined, rounded, and sharp variants, as well as variable font features like fill, weight, grade, and optical size. For more information, see the Material Symbol Guide and Material Symbol Library.

The Material Symbols font is the easiest way to incorporate Material Symbols into your application. Using the Fonts CSS API, you can use variable fonts to optimize icon usage within your application. See Can I Use's Variable Fonts to determine whether your user's browser support variable fonts.

This package is part of M3E monorepo, a unified suite of Material 3 web components. Explore the docs to see them in action.

📦 Installation

npm install @m3e/icon

💻 Editor Integration

This package includes a Custom Elements Manifest to support enhanced editor tooling and developer experience.

Visual Studio Code

To enable autocomplete and hover documentation for @m3e/icon, install the Custom Elements Manifest Language Server extension. It will automatically detect the manifest bundled with this package and surface tag names, attributes, slots, and events in supported files.

Alternately, you can explicitly reference the html-custom-data.json and css-custom-data.json in your workspace settings:

{
  "html.customData": ["./node_modules/@m3e/icon/dist/html-custom-data.json"],
  "css.customData": ["./node_modules/@m3e/icon/dist/css-custom-data.json"]
}

🚀 Native Module Support

This package uses JavaScript Modules. To use it directly in a browser without a bundler, use a module script similar to the following.

<script type="module" src="/node_modules/@m3e/icon/dist/index.js"></script>

In addition, you must use an import map to include dependencies.

<script type="importmap">
  {
    "imports": {
      "lit": "https://cdn.jsdelivr.net/npm/lit@3.3.0/+esm",
      "@m3e/core": "/node_modules/@m3e/core/dist/index.js"
    }
  }
</script>

For production, use index.min.js for faster load times.

🗂️ Elements

• m3e-icon — A small symbol used to easily identify an action or category.

🧪 Examples

The following example illustrates showing the home icon. The name attribute specifies the icon to present.

<m3e-icon name="home"></m3e-icon>

The next example illustrates a link used to download a variable font for outlined icons with fill support.

<link
  href="https://fonts.googleapis.com/css2?family=Material+Symbols+Outlined:opsz,wght,FILL,GRAD@24,400,0..1,0"
  rel="stylesheet"
/>

📖 API Reference

⚙️ Attributes

Attribute	Type	Default	Description
name	string		The name of the icon.
variant	"outlined" | "rounded" | "sharp"	"outlined"	The appearance variant of the icon.
filled	boolean	false	Whether the icon is filled.
grade	"low" | "medium" | "high"	"medium"	The grade of the icon.
weight	number	400	A value from 100 to 700 indicating the weight of the icon.
optical-size	number	24	A value from 20 to 48 indicating the optical size of the icon.

🎛️ CSS Custom Properties

Property	Description
--m3e-icon-size	Font size of the icon.

🤝 Contributing

See the root monorepo CONTRIBUTING.md for guidelines on contributing to this package.

📄 License

This package is licensed under the MIT License.