diff --git a/mod/quiz/styles.css b/mod/quiz/styles.css
index da39888ee0162..f4763f9d1d72a 100644
--- a/mod/quiz/styles.css
+++ b/mod/quiz/styles.css
@@ -876,14 +876,6 @@ table.quizreviewsummary td.cell {
     display: none;
 }
 
-#categoryquestions > tbody > tr:nth-of-type(even) {
-    background: #e4e4e4;
-}
-
-#categoryquestions > tbody > tr.highlight {
-    background-color: #afa;
-}
-
 #categoryquestions .header {
     text-align: center;
     padding: 0 2px;
diff --git a/theme/boost/scss/moodle/question.scss b/theme/boost/scss/moodle/question.scss
index e5a42f3edd540..b648e209a9f6b 100644
--- a/theme/boost/scss/moodle/question.scss
+++ b/theme/boost/scss/moodle/question.scss
@@ -154,6 +154,14 @@
         font-weight: normal;
     }
 
+    & > tbody > tr.r1 {
+        background-color: $table-accent-bg;
+    }
+
+    & > tbody > tr.highlight {
+        border: $border-width solid $info;
+    }
+
     .checkbox {
         padding-left: 5px;
     }
@@ -472,14 +480,6 @@ body.jsenabled .questionflag input[type=checkbox] {
     background: transparent;
 }
 
-#page-mod-quiz-edit #categoryquestions > thead {
-    background: #fff;
-}
-
-#page-mod-quiz-edit #categoryquestions > tbody > tr:nth-of-type(even) {
-    background: #e4e4e4;
-}
-
 #page-mod-quiz-edit .questionbankwindow div.header {
     color: #444;
     text-shadow: none;
diff --git a/theme/boost/style/moodle.css b/theme/boost/style/moodle.css
index 7c7eaf91af505..fc89c3296ef4d 100644
--- a/theme/boost/style/moodle.css
+++ b/theme/boost/style/moodle.css
@@ -15606,6 +15606,10 @@ a.ygtvspacer:hover {
   #categoryquestions th {
     text-align: left;
     font-weight: normal; }
+  #categoryquestions > tbody > tr.r1 {
+    background-color: rgba(0, 0, 0, 0.05); }
+  #categoryquestions > tbody > tr.highlight {
+    border: 1px solid #008196; }
   #categoryquestions .checkbox {
     padding-left: 5px; }
   #categoryquestions .checkbox input[type="checkbox"] {
@@ -15888,12 +15892,6 @@ body.jsenabled .questionflag input[type=checkbox] {
 #page-mod-quiz-edit div.questionbank .categoryquestionscontainer {
   background: transparent; }
 
-#page-mod-quiz-edit #categoryquestions > thead {
-  background: #fff; }
-
-#page-mod-quiz-edit #categoryquestions > tbody > tr:nth-of-type(even) {
-  background: #e4e4e4; }
-
 #page-mod-quiz-edit .questionbankwindow div.header {
   color: #444;
   text-shadow: none;
diff --git a/theme/classic/style/moodle.css b/theme/classic/style/moodle.css
index ae6878beb79f8..f86d9f35c686c 100644
--- a/theme/classic/style/moodle.css
+++ b/theme/classic/style/moodle.css
@@ -15825,6 +15825,10 @@ a.ygtvspacer:hover {
   #categoryquestions th {
     text-align: left;
     font-weight: normal; }
+  #categoryquestions > tbody > tr.r1 {
+    background-color: rgba(0, 0, 0, 0.05); }
+  #categoryquestions > tbody > tr.highlight {
+    border: 1px solid #008196; }
   #categoryquestions .checkbox {
     padding-left: 5px; }
   #categoryquestions .checkbox input[type="checkbox"] {
@@ -16109,12 +16113,6 @@ body.jsenabled .questionflag input[type=checkbox] {
 #page-mod-quiz-edit div.questionbank .categoryquestionscontainer {
   background: transparent; }
 
-#page-mod-quiz-edit #categoryquestions > thead {
-  background: #fff; }
-
-#page-mod-quiz-edit #categoryquestions > tbody > tr:nth-of-type(even) {
-  background: #e4e4e4; }
-
 #page-mod-quiz-edit .questionbankwindow div.header {
   color: #444;
   text-shadow: none;