Question

what is costume in scratch programming​

Answer 1

$\huge\bf{{\color{navy}{a}}{\color{indigo}{n}}{\color{blue}{s}}{\blue{w}}{\color{skyblue}{e}}{\color{lightblue}{r}}}$

A costume is one out of possibly many "frames" or alternate appearances of a sprite. Sprites can change their look to any of its costumes. They can be named, edited, created, and deleted, but every sprite must have at least one costume.