sass - Vaadin valo background image

Question

mytheme.scss file:

@import "../valo/valo.scss";

@mixin mytheme {

 @include valo;  
 background-image: url("img/light-background.jpg");
  }

my image is in ...VAADIN/themes/mytheme/img/light-background.jpg

where is no compiling/running errors, why image isn't displayed as a background?

Answer 1

Edit: On hold until additional details are provided.

Try setting it as the background image for your UI's generated div:

@mixin mytheme {
  @include valo;

  .v-ui {
     background-image: url("img/light-background.jpg");
  }
}