You can extend functionality and make adjustments for .css / .xml / .phtml / .js files in Magento 2. The workflow and adjustments below are applicable to any Magento 2 extension
Summary:
- Using a child theme for Magento 2 customizations.
- Magento 2 .css customization.
- Magento 2 .xml customization.
- Magento 2 .phtml customization.
- Magento 2 .js customization
- Add custom code in Footer and Head via Magento admin options
- Specific Pearl Theme CSS/JS options for individual Category Pages, Static Pages and Static Blocks.
- Additional Magento Customization not explained in the examples above