A CSS snippet about Outline core plugin stopped working

Custom CSS & Theme Design
,
1

Hello people!

I’m looking for your kind help because a CSS snippet I have just stopped working, and I don’t know or understand why.

The snippet is the following:

body {
  --outline-guideline-width: var(--size-2-1);
  --outline-guideline-color: var(--accent-active);
  --outline-item-height: calc(var(--nav-item-size) * 1.8);
  /*active color*/
  --accent-active: hsl(var(--accent-h),
      var(--accent-s),
      calc(var(--accent-l) + 4%));
}

.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item {
  position: relative;
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-self {
  position: relative;
  margin-bottom: 0;
  white-space: nowrap;
  margin-top: -5px !important;
  /* fix item gap */
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-self .tree-item-inner {
  position: relative;
  padding-left: var(--size-4-4);
  overflow: hidden;
  text-overflow: ellipsis;
  height: var(--outline-item-height);
  line-height: var(--outline-item-height);
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-self .tree-item-inner::before {
  content: "";
  width: var(--size-4-1);
  height: var(--size-4-1);
  border: var(--size-2-1) solid var(--outline-guideline-color);
  border-radius: 50%;
  position: absolute;
  left: 0px;
  top: 50%;
  transform: translateY(-50%);
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-self .tree-item-icon ~ .tree-item-inner {
  padding-left: var(--size-4-4); /* Changed from 'var(--size-4-1);' now looks right */
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-self .tree-item-icon ~ .tree-item-inner::before {
  content: none;
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item.is-collapsed .tree-item-icon::before {
  box-shadow: 0 0 0 var(--size-4-1) var(--background-modifier-hover);
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item::after {
  content: "";
  width: var(--outline-guideline-width);
  position: absolute;
  background-color: transparent;
  top: calc(var(--outline-item-height) / 2 * -1);
  left: -6px;
  height: calc(100% - var(--outline-item-height) + var(--size-4-8));
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-icon {
  cursor: pointer;
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-icon::before {
  width: var(--size-4-2);
  height: var(--size-4-2);
  background-color: var(--outline-guideline-color);
  border-radius: 50%;
  position: absolute;
  left: 7px;
  top: 120%;
  transform: translateY(-50%);
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item-icon svg path {
  display: none;
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item:hover > .tree-item-children > .tree-item::after {
  background-color: var(--outline-guideline-color);
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item:hover > .tree-item-self:hover + .tree-item-children .tree-item::after {
  background-color: transparent;
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item:hover > .tree-item-children > .tree-item:hover::after, .workspace-leaf-content[data-type=outline] .view-content .outline .tree-item:hover > .tree-item-children > .tree-item:hover ~ .tree-item::after {
  background-color: transparent;
}
.workspace-leaf-content[data-type=outline] .view-content .outline .tree-item:hover > .tree-item-children > .tree-item:hover::before {
  content: "";
  position: absolute;
  top: calc(var(--outline-item-height) / 2 * -1);
  left: -6px;
  bottom: calc(100% - (var(--outline-item-height) + var(--size-4-2)) / 2 - 1px);
  width: var(--size-4-4);
  border-bottom-left-radius: var(--radius-m);
  border-bottom: var(--outline-guideline-width) solid var(--outline-guideline-color);
  border-left: var(--outline-guideline-width) solid var(--outline-guideline-color);
}
.workspace-leaf-content[data-type=outline] .view-content .outline :is(.tree-item-children, .tree-item-self .tree-item-self) {
  padding-left: 0;
  margin-left: var(--size-4-5);
  border-left: none;
}

I have no idea whatsoever why it stopped working, as of yesterday it worked flawlessly.

A couple things to say:

  1. I didn’t write this, I found it somewhere (I think here on the forum). I have no idea how it works, I just tweak things untile I like them, but I have no idea what a good part of this snippet does;
  2. Today two important things happened:
    • I updated Obsidian to 1.4.14, so it might be that;
    • I updated my Mac Air to MacOS Sonoma.

What can I do? Is there something to fix?

Thank you for your time.

2

The first few things here with the double hyphens -- are custom properties, and at least these three are not defined in the Obsidian app.css file. They are not part of vanilla Obsidian and most likely come from / point to a community theme or plugin.

Have you switched themes or disabled any plugins that deal with the Outline tab recently?

3

I have not changed themes, I’m currently using Minimal theme btw.
I have not installed, enabled, disabled or altered in any way any community plugin.
Yesterday I enabled the core plugin workspaces, but I don’t think there’s any correlation, and disabling it doesn’t produce any effects.

Is there anything else I could do?

4

Apologies, after a closer look, the parts at the top were probably defined by the author of the CSS snippet as they are referenced later on in it.

Ah, I see it’s from here:

5

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