Where should the /assets folder be located?

In an Angular library, the recommended location for the /assets folder is under /src, not /src/lib. This ensures that the assets are bundled correctly when the library is built and consumed in applications.

Structure: projects/src/assets/icons/icon.svg

ng-package.json and/or angular.json Modifications

angular.json

{
  "projects": {
    "library-name": {
      "architect": {
        "build": {
          "options": {
            "assets": [
              {
                "glob": "**/*",
                "input": "src/assets",
                "output": "assets"
              }
            ]
          }
        }
      }
    }
  }
}

ng-package.json

{
  "$schema": "../../node_modules/ng-packagr/ng-package.schema.json",
  "assets": [
    "src/assets"
  ]
}

In the component templates

Use a relative path like this

<img src="assets/icons/my-icon.svg" alt="My Icon">

Use relative paths ensures that the assets are packaged with the library and work seamlessly when the library is consumed in different environments.