I'm looking for a solution to set up background image without CSS knowledge and addition of css files. At this point, I rely on mighty powers of Vaadin. Obviously, the solution posted here is not appropriate for me, since I use a built-in ValoTheme and I highly want to follow my principles (use only one styling).
Is it possible to do that without CSS?
You can set the background attribute in the body
like so:
<body background='path/to/image/file.png'>
Here's the link to the W3 Schools site for reference: W3 Schools - Body Background Attribute