The white background color seems boring to you and you would like to put your own graphics there?
In the Design tab, click New, if you have already created a theme, select Edit.
After entering style editing mode, decide whether you want to upload an image background or set a solid color.
You can set the background image by clicking on the icon next to the phrase "Background image":
Just click on the "Add background" button and upload your own background. Remember that the file cannot be larger than 3MB.
After uploading your own background image, you can fully customize its appearance and display:
Opacity – use the slider to set the background transparency level:
Size – select one of the options:
Fill – the image will be stretched to fill the entire space,
Cover – the image will retain its proportions and be adjusted to fit the available space.
Position – decide where the reference point should be in the image (e.g., centered, aligned to the left, aligned to the top, etc.):
Display on different devices – set the background appearance separately:
on laptops and monitors (e.g., 33% or 50% of the screen width with the option to choose sides: right/left; or full screen width),
on mobile devices (e.g., header image, full screen, or the option to disable image display):
Important: To check how the selected style looks on different devices, use the Preview function – it will show you how the questionnaire background image will be displayed on a computer, tablet, and phone:
3. You can set a solid color background by clicking on the field next to the word "Background" and selecting a color from the palette:
Save your changes and you're done :)