Background size

hi, I need to know which is the image size that I have to upload to create my own theme for a photo cotest

The optimal size for a background image is 1920 x 1920 px.

Since PollUnit is a responsive application, there is no fixed aspect ratio. The background image is automatically adjusted to fit the monitor or smartphone screen. Therefore, there should be no text blocks in the image, as they could be cut off.

If you have any special requirements for the background image, I would also be happy if you share them with me.

By the way: in the PollUnit description it is also possible to insert graphics. These can also contain text.

ok, thank you for your response.