Animated Calendar Icon with Checkmark for Task Completion

This animated icon features a clean, minimalist calendar design, ideal for conveying concepts of scheduling, task management, or successful completion. The animation begins with a black outlined calendar. Individual cells within the calendar sequentially fill with a vibrant turquoise color, followed by crisp 'X' marks appearing in some cells, and finally, a definitive checkmark signifying achievement or approval. The flat design and smooth motion make it a versatile asset for business presentations, educational content, app interfaces, or explainer videos seeking a modern and clear visual representation of planning and productivity.