Clicking on image thumbnail doesn't enlarge it (only on one of my vaults)

[Jaris]

My original vault that I played around with works perfectly. Click on a thumbnail and it enlarges the image.
The LYT template I downloaded (and have since made my own) does NOT do this.

Both vaults are set to Safe Mode, and I can’t find any differences in the settings. Is there something going on in CSS I need to search for?
Thank you!

[Jaris]

I found the solution and will post it here for future users.
The vault that had image zoom was using the “minimal” theme. I found the scripting which allows this and added it to my other vault using a different theme.

 /* Image zoom  */

.view-content .markdown-preview-view img {
  max-width:100%;
  cursor:zoom-in;}

.view-content .markdown-preview-view img[referrerpolicy='no-referrer']:active,
.view-content .image-embed:active {
  cursor:zoom-out;
  display:block;
  z-index:100;
  position:fixed;
  max-height:calc(100% + 1px);
  max-width:calc(100% - 20px);
  height:calc(100% + 1px);
  width:100%;
  object-fit:contain;
  margin:-0.5px auto 0;
  text-align:center;
  padding:0;
  left:0;
  right:0;
  bottom:0;
  background:var(--background-translucent);
}
.view-content .markdown-preview-view img[referrerpolicy='no-referrer']:active {
  padding:2.5%;
}
.view-content .markdown-preview-view .image-embed:active img {
  top:50%;
  transform:translateY(-50%);
  padding:0;
  margin:0 auto;
  width:auto;
  max-height:95vh;
  left:0;
  right:0;
  bottom:0;
  position:absolute;
  opacity:1;
}
.theme-dark span[src$="#invert"] img {
  filter: invert(1) hue-rotate(180deg);
  mix-blend-mode: screen;
}

/* --------------- */