diff --git a/quartz/styles/custom.scss b/quartz/styles/custom.scss
index 5996a11..29da424 100644
--- a/quartz/styles/custom.scss
+++ b/quartz/styles/custom.scss
@@ -101,12 +101,12 @@ table {
     & .ileft {
         padding-left: 1.7rem;
     
-        background-image: linear-gradient(black, black), linear-gradient(black, black);
+        background-image: linear-gradient(var(--darkgray), var(--darkgray)), linear-gradient(var(--darkgray), var(--darkgray));
         background-repeat: no-repeat;
         background-size: 8px 2px;
         background-position: top left, bottom left;
     
-        border-left: solid black;
+        border-left: solid var(--darkgray);
         border-width: 0 2px;
     }