Design a coffee beans icon with visual elements suggesting roasting levels. Render a group of 3-4 coffee beans with 3pt strokes, positioned in a horizontal or slightly diagonal arrangement. Each bean should be rendered identically with the characteristic oval shape and central seam. Add subtle visual indicators to suggest different roasting levels—such as varying internal line patterns or density marks (rendered with 3pt strokes)—to differentiate light, medium, and dark roasts. Position the beans centrally in the frame. Use pure black 3pt strokes with white background. This design educates about coffee roasting varieties, suitable for specialty coffee retailers, educational materials, or coffee sourcing contexts.

The image shows three coffee beans drawn in black and white on a white background. The beans are arranged in a triangular formation, with the largest one in the center and two smaller ones on either side. The black lines of the beans create a stark contrast against the white background, making them stand out.