You can customize avatar backgrounds — called Spaces — in Synthesia using text prompts. This lets you place avatars in environments that better match your message and audience.
📚 You can also customize outfits and create Avatar B-roll to bring your videos to life:
Learn how to customize outfits in How do I customize avatar outfits in Synthesia?
Learn how to animate avatars in How do I create avatar B-roll clips in Synthesia?
Which Avatars does this work for?
Background customization is available for:
A specific set of six expressive synthetic stock avatars
Personal avatars created from a photo
If you’re using a personal avatar, see How do I create personal avatars from photo? to learn more about setup and requirements.
Customize backgrounds (Spaces)
In the video editor, add a customizable Avatar to your video and click Spaces in the inspector panel.
Click Create space in the bottom-left of the picker.
Enter a text prompt describing the space, or press Tab to auto-generate a prompt based on your video script.
Example: “modern office with large windows”
(Optional) Add branding:
Use the logo picker to select a logo from your Brand Kit or Library, or upload a new one.
Include brand colors using hex codes (for example,
#0057B7) and describe how you want them applied.
Click the blue arrow. It will take a few minutes to create your Space.
When ready, apply the Space to your video or add it to your favorites for future use.
✍️ Once you’ve created custom Spaces and avatar outfits, you can mix and match them — using any outfit with any background.