DEV: SCSS cleanup

DEV: SCSS cleanup

diff --git a/assets/stylesheets/bbcode.scss b/assets/stylesheets/bbcode.scss
index d8daae6..7fcb37f 100644
--- a/assets/stylesheets/bbcode.scss
+++ b/assets/stylesheets/bbcode.scss
@@ -1,10 +1,7 @@
 .d-editor-preview,
 .cooked {
   span.highlight {
-    background-color: var(
-      --bbcode-highlight,
-      dark-light-diff($tertiary, $secondary, 85%, -65%)
-    );
+    background-color: var(--bbcode-highlight);
     padding: 2px;
     margin: -2px;
   }

GitHub sha: 701203fc7195b127b6435dc472d35d9ece2e85e1