What is the main purpose of the Bourbon mixin library in Liferay themes?

The Bourbon mixin library is primarily used in Liferay themes to include commonly used CSS styles, which are designed to streamline and enhance the development process for front-end styling. By utilizing a collection of reusable Sass mixins, Bourbon allows developers to write cleaner, more maintainable code while implementing complex styles with less effort.

The use of mixins promotes consistency across different styles and components within a theme, enabling a more efficient workflow. This makes it easier for developers to create responsive designs and adhere to best practices without having to rewrite common styles from scratch. Thus, the main purpose of Bourbon in the context of Liferay themes revolves around enhancing CSS capabilities and providing a robust toolkit for styling elements efficiently.