diff --git a/question/bank/managecategories/styles.css b/question/bank/managecategories/styles.css
index 1139c631468..3f0b96eda0d 100644
--- a/question/bank/managecategories/styles.css
+++ b/question/bank/managecategories/styles.css
@@ -30,15 +30,6 @@
 .qbank_managecategories-item .qbank_managecategories-item:first-child {
     border-top-color: #dee2e6;
 }
-.qbank_managecategories-item.qbank_managecategories-droptarget-before,
-.qbank_managecategories-item .qbank_managecategories-item.qbank_managecategories-droptarget-before,
-.qbank_managecategories-categorylist.qbank_managecategories-droptarget-before > .qbank_managecategories-item:first-child {
-    border-top-color: black;
-}
-.qbank_managecategories-item.qbank_managecategories-droptarget,
-.qbank_managecategories-categorylist.qbank_managecategories-droptarget > .qbank_managecategories-item:last-child {
-    border-bottom-color: black;
-}
 .qbank_managecategories-details p:last-child {
     margin-bottom: 0;
 }
@@ -94,10 +85,6 @@
 .qbank_managecategories-droptarget-before > .container > .row > .qbank_managecategories-contentcontainer > :not(.qbank_managecategories-childlistcontainer) .qbank_managecategories-newchild {
     display: unset;
 }
-.qbank_managecategories-newchild.qbank_managecategories-droptarget {
-    border-color: black;
-    color: black;
-}
 /* Hidden descriptions */
 .qbank_managecategories-description {
     display: none;
diff --git a/theme/boost/scss/moodle/question.scss b/theme/boost/scss/moodle/question.scss
index 39dda13ee38..f628387b51d 100644
--- a/theme/boost/scss/moodle/question.scss
+++ b/theme/boost/scss/moodle/question.scss
@@ -671,3 +671,18 @@ body.path-question-type .mform fieldset.hidden {
         margin: 0;
     }
 }
+
+.qbank_managecategories-item.qbank_managecategories-droptarget-before,
+.qbank_managecategories-item .qbank_managecategories-item.qbank_managecategories-droptarget-before,
+.qbank_managecategories-categorylist.qbank_managecategories-droptarget-before > .qbank_managecategories-item:first-child {
+    border-top-color: $link-color;
+}
+.qbank_managecategories-item.qbank_managecategories-droptarget,
+.qbank_managecategories-categorylist.qbank_managecategories-droptarget > .qbank_managecategories-item:last-child {
+    border-bottom-color: $link-color;
+}
+
+.qbank_managecategories-newchild.qbank_managecategories-droptarget {
+    border-color: $link-color;
+    color: $link-color;
+}
\ No newline at end of file
diff --git a/theme/boost/style/moodle.css b/theme/boost/style/moodle.css
index 00bc427c50d..1763dc53928 100644
--- a/theme/boost/style/moodle.css
+++ b/theme/boost/style/moodle.css
@@ -32730,6 +32730,22 @@ body.path-question-type .mform fieldset.hidden {
     margin: 0;
   }
 }
+.qbank_managecategories-item.qbank_managecategories-droptarget-before,
+.qbank_managecategories-item .qbank_managecategories-item.qbank_managecategories-droptarget-before,
+.qbank_managecategories-categorylist.qbank_managecategories-droptarget-before > .qbank_managecategories-item:first-child {
+  border-top-color: #0f6cbf;
+}
+
+.qbank_managecategories-item.qbank_managecategories-droptarget,
+.qbank_managecategories-categorylist.qbank_managecategories-droptarget > .qbank_managecategories-item:last-child {
+  border-bottom-color: #0f6cbf;
+}
+
+.qbank_managecategories-newchild.qbank_managecategories-droptarget {
+  border-color: #0f6cbf;
+  color: #0f6cbf;
+}
+
 /* user.less */
 .userprofile .fullprofilelink {
   text-align: center;
diff --git a/theme/classic/style/moodle.css b/theme/classic/style/moodle.css
index 03a71330c96..23d980612c9 100644
--- a/theme/classic/style/moodle.css
+++ b/theme/classic/style/moodle.css
@@ -32730,6 +32730,22 @@ body.path-question-type .mform fieldset.hidden {
     margin: 0;
   }
 }
+.qbank_managecategories-item.qbank_managecategories-droptarget-before,
+.qbank_managecategories-item .qbank_managecategories-item.qbank_managecategories-droptarget-before,
+.qbank_managecategories-categorylist.qbank_managecategories-droptarget-before > .qbank_managecategories-item:first-child {
+  border-top-color: #0f6cbf;
+}
+
+.qbank_managecategories-item.qbank_managecategories-droptarget,
+.qbank_managecategories-categorylist.qbank_managecategories-droptarget > .qbank_managecategories-item:last-child {
+  border-bottom-color: #0f6cbf;
+}
+
+.qbank_managecategories-newchild.qbank_managecategories-droptarget {
+  border-color: #0f6cbf;
+  color: #0f6cbf;
+}
+
 /* user.less */
 .userprofile .fullprofilelink {
   text-align: center;