styles.css

/* Style the button that is used to open and close the collapsible content */
.omnivore-collapsible {
	cursor: pointer;
	border-bottom: outset;
}

/* Style the collapsible content. Note: hidden by default */
.omnivore-content {
	max-height: 0;
	overflow: hidden;
	transition: max-height 0.2s ease-out;
}

.omnivore-collapsible:after {
	content: '\02795'; /* Unicode character for "plus" sign (+) */
	float: right;
}

.omnivore-active:after {
	content: '\2796'; /* Unicode character for "minus" sign (-) */
}

.omnivore-highlight-config-container {
	border-bottom: 1px solid var(--background-modifier-border);
}

.modal.mod-settings
  button:not(.mod-cta):not(.mod-warning).omnivore-btn.omnivore-btn-primary {
   	color: var(--text-accent);
}

.modal.mod-settings
  button:not(.mod-cta):not(.mod-warning).omnivore-btn.omnivore-btn-primary:hover {
	color: var(--text-accent-hover);
	background-color: var(--background-secondary);
}

/*----------------------------------------------------------------
Omnivore Highlight Color Config Setting
----------------------------------------------------------------*/

.omnivore-highlight-setting-item {
	display: grid;
	grid-gap: 8px;
	grid-template-columns: 0.5fr 7fr;
	align-items: center;
	border-top: 1px solid var(--background-modifier-border);
}

.omnivore-highlight-setting-icon {
	display: flex;
	height: 24px;
	width: 24px;
}

mark.omni {
	background-color: var(--text-highlight-rgb);
	font-weight: 500;
	margin: 0 -0.05em;
	padding: 0.125em 0.15em;
	border-radius: 0.25em;
	-webkit-box-decoration-break: clone;
	box-decoration-break: clone;
}

mark.omni-yellow {
	--text-highlight-rgb: var(--omni-yellow);
}
mark.omni-red {
	--text-highlight-rgb: var(--omni-red);
}
mark.omni-green {
	--text-highlight-rgb: var(--omni-green);
}
mark.omni-blue {
	--text-highlight-rgb: var(--omni-blue);
}