👉 Halftones are a type of printing technique that uses two colors to create a single image. In this case, they refer to the process of using two separate colors (usually red and blue) to create an image on paper or other medium. This is similar to how we can use different shades of yellow in our everyday life to make it more colorful and varied. Halftones are commonly used for creating illustrations, logos, and other visual elements that require a high degree of detail and clarity.