Gradual Linear Poster Image

Quick answer：

A gradual linear poster image typically refers to a design feature in graphic arts where the colors or shades transition smoothly from one to another across a poster. This technique can be used to create a sense of movement, depth, or to convey a specific mood. In the context of poster design, it involves the use of gradients, which are smooth transitions between colors, to create a visually appealing and cohesive design.