ELI5: Explain Like I'm 5


Hand coloring is when someone takes a black and white picture and uses special tools like brushes, pencils, or markers to add colors to it by hand. Just like how you use crayons to color in a coloring book, people use these special tools to carefully color in parts of the picture. This makes the picture look more colorful and like it was taken in real life, instead of just being a black and white picture. It's like magic!