Namespaces should correspond to file locations

By convention, namespaces within a project should start with the project default namespace, and end with the file's position within the project. Anything else may confuse maintainers and callers.

Noncompliant Code Example

// file path: Gui/Screen.cs
namespace Green  // Noncompliant
{
  class Screen
  {
  }
}

Compliant Solution

// file path: Gui/Screen.cs
namespace Gui
{
  class Screen
  {
  }
}