Bootstrap vs Pattern Lab: What are the differences?

## Introduction
When comparing Bootstrap and Pattern Lab, it's important to understand the key differences between these two front-end development tools. 

1. **Grid System**: Bootstrap utilizes a predefined grid system with 12 columns, making it easier to create responsive layouts. On the other hand, Pattern Lab allows for more flexibility in creating custom grid systems tailored to specific project requirements.
   
2. **Component Structure**: Bootstrap provides a set of ready-made UI components such as buttons, forms, and typography, which can be easily implemented. In contrast, Pattern Lab encourages a modular approach where components are built and tested in isolation, promoting reusability and scalability.

3. **Customization Options**: While Bootstrap offers a wide range of pre-designed themes and customization options, Pattern Lab focuses on providing a framework for creating custom design systems tailored to unique brand guidelines and aesthetics.

4. **Documentation and Support**: Bootstrap has extensive documentation and a large community of users, making it easier to find tutorials and solutions to common issues. On the other hand, Pattern Lab may have a smaller community but offers more specialized support for designing complex and unique interfaces.

5. **Workflow Integration**: Bootstrap is primarily used as a front-end framework within a pre-existing development workflow, whereas Pattern Lab is often integrated into a component-driven design system that allows for more collaborative and iterative design processes.

6. **Performance Optimization**: While Bootstrap comes with a lot of built-in features and CSS styles, which can sometimes lead to CSS bloat and impact performance, Pattern Lab's modular approach allows developers to optimize performance by only including the necessary components and styles.

In Summary, Bootstrap and Pattern Lab differ in terms of grid system, component structure, customization options, documentation/support, workflow integration, and performance optimization, offering developers unique benefits and functionalities based on specific project needs.