Hair Card Studio is an add-on for generating and customizing hair cards directly within Blender. It provides a dedicated interface to adjust various strand properties, including thickness, length, spread, and clumping at both the root and tip. Users can dial in specific styles by modifying frizz, curl, roughness, and hairline shape parameters. The tool also includes material controls for applying solid or root-to-tip gradient colors, along with glossiness and sheen adjustments. Built-in lighting parameters and resolution-based render presets allow users to quickly output hair cards with transparent backgrounds.