--- a/devtools/client/themes/memory.css
+++ b/devtools/client/themes/memory.css
@@ -429,16 +429,20 @@ html, body, #app, #memory-tool {
   color: var(--theme-selection-color);
 }
 
 .heap-tree-item.focused ::-moz-selection {
   background-color: var(--theme-selection-color);
   color: var(--theme-selection-background);
 }
 
+.heap-tree-item.focused > .heap-tree-item-individuals > .individuals-button {
+  background-color: transparent;
+}
+
 .heap-tree-item-individuals,
 .heap-tree-item-bytes,
 .heap-tree-item-count,
 .heap-tree-item-total-bytes,
 .heap-tree-item-total-count {
   /**
    * Flex: contains several subcolumns, which need to be laid out horizontally.
    * These subcolumns may have specific widths or need to flex.