Start with your content format
Your overlay should support the stream rather than compete with it. Begin by listing the scenes you use most often, such as gameplay, just chatting, starting soon and BRB.
Build one consistent visual system
Use the same colour palette, typography, shapes and motion style across alerts, panels, screens and social assets. Consistency helps viewers recognise your channel quickly.
Prepare for OBS or Streamlabs
Confirm your canvas size, webcam position, alert provider and export requirements before final delivery.