"Create a Roblox-style 3D hair texture with a deep cosmic purple gradient. The hair should have a rich, bright violet at the top, gradually fading into a dark indigo-purple at the ends. Incorporate subtle galaxy star speckles that are tiny and evenly scattered, ensuring they’re soft and not glowing or noisy. Aim for a matte-smooth finish with gentle shading, avoiding harsh highlights or metallic shine. Maintain a clean, minimal, and premium Roblox UGC aesthetic. Use soft lighting and smooth grad