In order to change the colors and appearance of the site to suit our needs, we must:
1. Note that we are connected and move to the management interface.
2. Then we will see the management menu and below it an option of the site settings.
3. Scroll through the settings a little below until we see the title 'Visibility' Here we can change the organization logo, and upload the logo we want to send to participants in the emails they send.
4. In the same way we can change the background colors of the site and the question, and the color of the caption.