Code Snippet Custom Language Label Customize the language label shown with your Code Snippet.
Important Notes: Pass a custom language label with the custom_lang_label prop or the data-custom-lang-label attribute if using HTML. Only use a custom label if the default label is not desired.
Demo 
$ echo "Hello World"
Twig
{% set code_snippet %}
$ echo "Hello World"
{% endset %}

{% include '@bolt-components-code-snippet/code-snippet.twig' with {
  content: code_snippet,
  lang: 'bash',
  custom_lang_label: 'Terminal',
} only %}
HTML
<div class="c-bolt-code-snippet" data-lang="bash" data-mode="light" data-custom-lang-label="Terminal">
<pre><code>$ echo "Hello World"</code></pre>
</div>