PNG is a widely used image format known for its lossless compression, making it suitable for high-quality graphics. It supports transparency and is commonly used for web graphics, digital images, and illustrations. A mockup is a visual representation or prototype of a design, often used in the early stages of a project. It provides a preview of how the final product or design will look, allowing stakeholders to evaluate and provide feedback before implementation. In a general sense, options refer to choices or alternatives available in a given situation. In various contexts, such as software settings or decision-making, options represent the range of possibilities or configurations that users can choose from.