彩色玻璃蝴蝶扇翅

Create a 6-frame looping sprite sheet, 3 columns by 2 rows of equal 512x512 cells on a dark charcoal background. Subject: a symmetrical stained-glass butterfly seen from directly above, with black lead lines and glowing cobalt, amber and ruby panes. Its body stays fixed at the center of each cell, and its wings flap by changing apparent width: fully open, three-quarter, half, narrow, half, three-quarter. The panes glow slightly brighter when fully open. Frame 6 returns to frame 1. No grid lines, no numbers, no text.

生成 6 帧循环精灵图，3 列 2 行，每格 512x512，深炭灰背景。主体是从正上方看的对称彩色玻璃蝴蝶，黑色铅条线，发光的钴蓝、琥珀和宝石红玻璃块。身体固定在每格中央，翅膀靠视觉宽度变化来扇动：全开、四分之三、一半、窄、一半、四分之三。全开时玻璃略微更亮。第 6 帧接回第 1 帧。不要格线、数字和文字。