diff --git a/app/src/processing/app/contrib/ContributionTab.java b/app/src/processing/app/contrib/ContributionTab.java
index b97e9325c..84e2221ad 100644
--- a/app/src/processing/app/contrib/ContributionTab.java
+++ b/app/src/processing/app/contrib/ContributionTab.java
@@ -96,6 +96,8 @@ public class ContributionTab extends JPanel {
 
     listPanel.updateTheme();
     statusPanel.updateTheme();
+
+    closeButton.setIcon(Toolkit.renderIcon("manager/close", Theme.get("manager.error.close.icon.color"), 16));
   }
 
 
@@ -210,7 +212,8 @@ public class ContributionTab extends JPanel {
     errorMessage.setMinimumSize(dim);
     errorMessage.setOpaque(false);
 
-    closeButton = Toolkit.createIconButton("manager/close");
+//    closeButton = Toolkit.createIconButton("manager/close");
+    closeButton = new JButton();
     closeButton.setContentAreaFilled(false);
     closeButton.addActionListener(e -> managerFrame.rebuildTabLayouts(false, false));
     tryAgainButton = new JButton("Try Again");
diff --git a/build/shared/lib/manager/close-1x.png b/build/shared/lib/manager/close-1x.png
deleted file mode 100644
index 02ab4cc4e..000000000
Binary files a/build/shared/lib/manager/close-1x.png and /dev/null differ
diff --git a/build/shared/lib/manager/close-2x.png b/build/shared/lib/manager/close-2x.png
deleted file mode 100644
index 3f3202da7..000000000
Binary files a/build/shared/lib/manager/close-2x.png and /dev/null differ
diff --git a/build/shared/lib/theme.txt b/build/shared/lib/theme.txt
index 0d4e0d8ed..d95bcda27 100644
--- a/build/shared/lib/theme.txt
+++ b/build/shared/lib/theme.txt
@@ -205,6 +205,9 @@ manager.tab.background = #6BA0C7
 
 ## ContributionTab
 
+# error window (X) close button
+manager.error.close.icon.color = #000000
+
 manager.scrollbar.thumb.enabled.color = #3E769D
 manager.scrollbar.thumb.rollover.color = #2F6A90
 manager.scrollbar.thumb.pressed.color = #2F6A90