In the context of the Crystal methods for agile software development, as developed by Alistair Cockburn, there is a variant called "Crystal Red." Crystal Red is one of the advanced methods within the Crystal framework and is designed to handle larger and more complex software projects, especially those that require multiple teams and resources.

Crystal Red is characterized by some specific features:

1. Project Size: Crystal Red is suitable for very large software projects that require a significant number of team members and resources. This can mean that the project involves dozens or even hundreds of developers and stakeholders.

2. Scalability: The method takes into account the need to coordinate and scale multiple teams to meet the project's requirements.

3. Complex Communication: In large projects, communication and coordination between teams and stakeholders are often more complex. Crystal Red ensures that mechanisms are in place to address this complexity.

4. Processes and Roles: Crystal Red can introduce more sophisticated processes and roles to enhance project coordination and management. This may include the introduction of specific coordination roles or committees.

It's important to note that the Crystal methods aim to be flexible and adaptable. Crystal Red is not a rigid approach but an adaptable method that tailors itself to the specific needs of a large and complex software project. As with other Crystal methods, communication and collaboration are emphasized.

Since software development and methodologies can evolve over time, it's always a good idea to consult current sources and resources to get the latest information on specific methods and frameworks like Crystal Red.