> For the complete documentation index, see [llms.txt](https://docs.stylemixthemes.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stylemixthemes.com/masterstudy-lms/developers-guide/course-builder-customization.md).

# Course Builder Customization

You have the ability to customize the Course Builder by adding your own custom styles and scripts, or even completely replacing the existing styles and scripts of the Course Builder.

### Adding Custom Styles and Scripts into Course Builder

#### Filter: `ms_lms_course_builder_additional_styles`

This filter allows you to add your own CSS files into the Course Builder. Usage:

```php
function my_course_builder_additional_styles( $styles ) {
	$styles[] = get_stylesheet_directory_uri() . '/custom-styles.css';

	return $styles;
}
add_filter( 'ms_lms_course_builder_additional_styles', 'my_course_builder_additional_styles' );
```

#### Filter: `ms_lms_course_builder_additional_scripts` 

This filter allows you to add your own JavaScript files into the Course Builder. Usage:

```php
function my_course_builder_additional_scripts( $scripts ) {
	$scripts[] = get_stylesheet_directory_uri() . '/custom-scripts.js';

	return $scripts;
}
add_filter( 'ms_lms_course_builder_additional_scripts', 'my_course_builder_additional_scripts' );
```

### Replacing Course Builder Styles and Scripts

#### Filter: `ms_lms_course_builder_css`

This filter allows you to replace the default CSS file used by the Course Builder. Usage:

```php
function my_course_builder_css( $css ) {
	return get_stylesheet_directory_uri() . '/course-builder.css';
}
add_filter( 'ms_lms_course_builder_css', 'my_course_builder_css' );
```

#### Filter: `ms_lms_course_builder_js` 

This filter allows you to replace the default JavaScript file used by the Course Builder. Usage:

```php
function my_course_builder_js( $js ) {
	return get_stylesheet_directory_uri() . '/course-builder.js';
}
add_filter( 'ms_lms_course_builder_js', 'my_course_builder_js' );
```


---

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