>>485You can do it with some hacks.
Here's a snippet I wrote that works for vichan+vichan&4cha
nx and new kissu UI. Not perfect by any means and have no opinion on the matter, just to show one way to do it with pure CSS using the divs that are already there.
div.thread > div.files div.file::before, section.post.op div.post-contents figure.finfo div.file-contents div.media-container::b
efore {
display: inline-block;
--scale: 2; /* between 1.0 and 2.0 recommended */
width: calc(var(--scale) * 50px);
height: calc(var(--scale) * 45px);
background: url("https://files.catbox.moe/nxrq8f.png");
margin-left: -20px;
margin-top: -50px;
background-size: cover;
background-repeat: no-repeat;
image-rendering: pixelated;
position: absolute;
content: '';
pointer-events: none;
}
::before and ::after, Pretty neat functions! Unfortunately cannot be applied directly to an <img>.