This is the default theme so there is not too much to configure.
toolbox:
theme:
grid:
grid_size: 12
breakpoints:
- identifier: 'xs'
name: 'Breakpoint: XS'
description: 'Your Description'
- identifier: 'ty'
name: 'Breakpoint: TY'
description: 'Your Description'
- identifier: 'sm'
name: 'Breakpoint: SM'
description: 'Your Description'
- identifier: 'md'
name: 'Breakpoint: MD'
description: 'Your Description'
- identifier: 'lg'
name: 'Breakpoint: LG'
description: 'Your Description'
- identifier: 'xl'
name: 'Breakpoint: XL'
description: 'Your Description'
<!DOCTYPE html>
<html lang="{{ app.request.locale }}">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
{{ pimcore_head_title() }}
{{ pimcore_head_meta() }}
{{ pimcore_head_link() }}
</head>
<body>
<div id="site">
<div class="container">
<div class="row">
<div class="col-12">
{% block content %}
{{ pimcore_areablock('content', toolbox_areablock_config('content')) }}
{% endblock %}
</div>
</div>
</div>
</div>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" >
<script src="https://code.jquery.com/jquery-3.5.1.slim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script>
</body>
</html>