Issue #3490587 by djsagar, saurav-drupal-dev, pinesso: Table UI issue in the Olivero theme

core/themes/olivero/css/components/table.css

@@ -92,6 +92,10 @@
   border-block-end: 0.25rem solid var(--color--primary-50);
 }
 
+.sticky-header thead {
+  background: var(--color--white);
+}
+
 /* Properly align VBO checkboxes. */
 
 .views-field-node-bulk-form .form-item {

core/themes/olivero/css/components/table.pcss.css

@@ -91,6 +91,9 @@
   z-index: 0;
   margin: 0;
   border-block-end: 4px solid var(--color--primary-50);
+  & thead {
+    background: var(--color--white);
+  }
 }
 
 /* Properly align VBO checkboxes. */