We know there's a lot of work that goes into branding a successful webinar with many factors to take into consideration.
If you want a default background image for all your webinars please reach out to your webinar.net project manager to take advantage of this unique feature.
If you choose to upload a background image per webinar, within Audience Interface Builder you can upload a customize webcam mute image within the Media Player customize tab.
Image size must be: 1920x1080
Note: If a default background image is uploaded for your account and no background image is uploaded within Audience Interface Builder, your default background will be displayed. PNG is our only supported format.
Also, if you use a Scene, it will appear on top of the Webcam Mute Image, hiding it.
For more information please email email@example.com.