A vibrant cartoon with colours and smooth animation. Create a 10-minute dialogue-free animated short film "Little Button". Style: warm hand-drawn 2D animation, soft watercolor textures, autumn palette (ochre, terracotta, warm yellow, muted blue), cozy European children's cartoon feel. Audience: 4+. Characters: a brave, curious little yellow button that "speaks" through tinkling bell sounds; Agatha, a kind elderly seamstress with round glasses and a long coat; Shtopka, a lazy ginger stray cat-philosopher with a torn ear; Klava, a lonely crow who collects shiny lost things. Plot: The button falls off Agatha's coat and rolls through a big city toward home before winter. It meets Shtopka, who first ignores it, then becomes its friend. Klava snatches it to her nest in a clock tower full of lost keys, earrings, and badges. The button tinkles about home and warmth, and Klava realizes her treasures miss their owners. In a snowstorm, the cat guides it over rooftops and the crow carries it through the air back to Agatha, who sews it back on. In the final scene, Klava leaves a lost key on a windowsill, and a passer-by finds it and smiles. Mood: touching, gentle humor. Music: acoustic, celesta, pizzicato, bells. Bright, hopeful ending.