The phrase designates printable or digital outlines, often in black and white, depicting characters from Japanese animation that embody characteristics typically associated with boys. These visuals are designed to be filled with color, offering a creative outlet for individuals of various ages. Common subjects in this genre include athletic girls with short hair, characters known for their assertive personalities, or those who prefer practical clothing styles.
Such imagery provides a unique avenue for self-expression and artistic development. The act of coloring can foster concentration, fine motor skills, and an understanding of color theory. Historically, coloring books have been a popular form of entertainment and education. The specific subcategory allows enthusiasts to engage with representations of strength, independence, and unconventional femininity within a familiar medium.