When you arrive at the Welcome Message step, a sample welcome message will appear. This is what recipients will see when they open your email. To edit the welcome message click the blue Edit button on the bottom right of the page. You will be taken to the email editor where you can make any necessary changes. Note that the colors and styling will match those set in the Survey/Form Styling step if you selected Apply this theme to Welcome & Thank You Messages on the top of that page.