> For the complete documentation index, see [llms.txt](https://docs.angular-package.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.angular-package.dev/sass/general-concepts.md).

# General concepts

### ⚠

The warning sign indicates the element is **not** **available** or **deprecated**.

### ⚒

Hammer and pick indicates documentation page is in construction.

### ★

The element starred as most **useful**.

{% embed url="<https://docs.angular-package.dev/v/designing/definitions>" %}
More definitions
{% endembed %}