The phrase in question refers to black Instagram covers, which are graphic designs employed as the visual introduction to Instagram Story Highlights. These covers serve as visual cues for users navigating the profiles, indicating the content of the organized stories within each highlight.
Their significance lies in enhancing profile aesthetics and user experience. Cohesive cover designs contribute to a polished and professional appearance, improving brand recognition and making profiles more visually appealing. Historically, users often relied on screenshots or simple text, but the adoption of consistent graphic designs has become a standard practice for businesses and individuals seeking a refined online presence. The main benefits include improved brand identity, clearer navigation, and increased engagement with highlighted content.