game UI element, health bar icon, single isolated asset icon perfectly centered in frame, flat 2D graphic drawing, zero volume, zero perspective, geometric circle outline divided into exactly 7 radial segments by curved swirling lines radiating from the center to the outer circle edge in a clockwise spiral twist, outline only, pure line art, no fill, clean black charcoal lines on plain solid white background, hand-drawn pencil sketch look with subtle trembling contour, minimalist, flat icon design, delicate film grain texture, strictly 2D
