A vibrant cartoon with colours and smooth animation. Create a cheerful 60-second 3D cartoon for kids starring Toto, a cute friendly character who teaches the seven rainbow colors. Show a beautiful rainbow and clearly teach them in order: RED, ORANGE, YELLOW, GREEN, BLUE, INDIGO, VIOLET. Show a matching object for each color: red apple, orange fruit, yellow sun, green grass, blue sky, indigo star, violet flowers. Toto says each color name clearly and reviews all seven at the end. Use bright colorful animation, simple English narration, large color-name subtitles, gentle happy music, and a fun "Great job!" ending. Vertical 9:16 format for YouTube Shorts.