How to use the YouTube Thumbnail Brief Generator.
Describe the focal point, hierarchy and contrast, not just a mood. Keep the concept faithful to what the video actually shows.
Make the workflow fit your task.
Describe the focal object, contrast and reading order, then specify the few elements needed to communicate the video topic. Keep the concept tied to actual footage or an explicitly illustrative visual.
- What you provide
- Video idea and brand style.
- What you get
- Visual composition brief for a designer.
See the input and the result.
Illustrative input and output · a teaching example, not a live WebAct run
Example input
Tutorial about finding a changed product dimension.
Completed example
Brief: two specification cards, one highlighted measurement, clear visual contrast and a short label indicating the change.
Load this input into the prompt, then copy it to WebAct to try the task. Your result may differ from the illustration.
Decisions and troubleshooting.
Does a thumbnail brief need exact colors and coordinates?
Include required brand constraints, but prioritize hierarchy and meaning. Designers need to know what should be noticed first.
Why does the proposed thumbnail suggest an event absent from the video?
Replace the unsupported visual with a real demonstration or clearly representative concept. The thumbnail should set an accurate expectation.
Try it with your own source.
Replace the example with your material in the task prompt. Keep the requirements you need, then copy the task into WebAct.
Customize and copy the task ↑