Design of poster background with top to bottom gradient

Quick answer：

The design of a poster background with a top to bottom gradient involves using color gradients to create a visual effect where the colors transition smoothly from the top of the background to the bottom. This technique is often used to add depth, highlight certain areas, or create a cohesive aesthetic. It requires selecting appropriate colors and using graphic design software to apply the gradient effect. Common software for such design tasks includes Adobe Photoshop, Illustrator, or free alternatives like GIMP and Canva.