In the popular cartoon Where's Waldo, viewers search for a character in a red-and-white striped shirt and hat. This character, Waldo, is hidden among numerous people and objects, many of which are also colored red and white, making Waldo very difficult to locate. In this cartoon, the red-and-white-stripe theme is the

target

Explanation:

The red and white lines on Wally's shirt represent a target. This configuration of colors and lines is very common in sports where a target needs to be hit with an object, making this configuration known for something that needs to be reached, found, like Wally, which is a target for the audience, who needs to find it in a scenario that is difficult to visualize.