Png image in window background

Hello people, I've tried to make this work and do not know how. What I need is to put the logo of my brand in the terminal, I did not find much reference with examples, the most I found was this one:

css: `
  .terms_terms {
    background: url(file://home/carlosantonio/Imagens/others/img.png) center;
    background-size: cover;
  }
  .terms_termGroup {
    background: rgba(0,0,0,0.7) !important
  }
`

How can I do put a png image at the bottom of my window?
I'm using Linux, and the path of my image is this: /home/carlosantonio/Imagens/others/img.png
I know it's a relatively simple question, but it would be a great help for a project I'm developing. Thank you very much

The issue only points to the CSS snippet and the .terms_terms and .terms_termGroup selectors; no repository file or test is identified. Confirm whether this is a documentation request or a terminal UI feature, then define the target entry point and an acceptance check showing the PNG background works.