Original Guide
Labels beside the objects
The original Guide has no standalone legend; its small labels identify individual specimens directly.
A legend explains recurring color roles after the specimen. The adopted shared legend keeps the Guide’s plain text character and gives each keyed color a more deliberate mark and readable label.
DemoLegend uses the refined key. The original Guide uses attached labels instead of a separate legend and remains unchanged.The subject and comparison objects are the same in each treatment. The key lives outside their layout, so it cannot change the border lesson.
The border-color reference compares the same border width and style in blue and violet.
The Reference retains its own caption and code comments. A legend is useful when a scene repeats these roles, and its text must carry the meaning without relying on color alone.