diff --git a/flatlaf-testing/dumps/uidefaults/FlatDarkLaf_1.8.0_202.txt b/flatlaf-testing/dumps/uidefaults/FlatDarkLaf_1.8.0_202.txt
index 551fcb67..606ac5d3 100644
--- a/flatlaf-testing/dumps/uidefaults/FlatDarkLaf_1.8.0_202.txt
+++ b/flatlaf-testing/dumps/uidefaults/FlatDarkLaf_1.8.0_202.txt
@@ -1273,6 +1273,16 @@ Tree.wideSelection             true
 TreeUI                         com.formdev.flatlaf.ui.FlatTreeUI
 
 
+#---- TristateCheckBox ----
+
+TristateCheckBox.clearMixed.clientProperty length=2    [Ljava.lang.Object;
+    [0] JButton.selectedState
+    [1] null
+TristateCheckBox.setMixed.clientProperty length=2    [Ljava.lang.Object;
+    [0] JButton.selectedState
+    [1] indeterminate
+
+
 #---- UIColorHighlighter ----
 
 UIColorHighlighter.stripingBackground #515657    javax.swing.plaf.ColorUIResource [UI]
diff --git a/flatlaf-testing/dumps/uidefaults/FlatLightLaf_1.8.0_202.txt b/flatlaf-testing/dumps/uidefaults/FlatLightLaf_1.8.0_202.txt
index d96e0e19..28a67042 100644
--- a/flatlaf-testing/dumps/uidefaults/FlatLightLaf_1.8.0_202.txt
+++ b/flatlaf-testing/dumps/uidefaults/FlatLightLaf_1.8.0_202.txt
@@ -1278,6 +1278,16 @@ Tree.wideSelection             true
 TreeUI                         com.formdev.flatlaf.ui.FlatTreeUI
 
 
+#---- TristateCheckBox ----
+
+TristateCheckBox.clearMixed.clientProperty length=2    [Ljava.lang.Object;
+    [0] JButton.selectedState
+    [1] null
+TristateCheckBox.setMixed.clientProperty length=2    [Ljava.lang.Object;
+    [0] JButton.selectedState
+    [1] indeterminate
+
+
 #---- UIColorHighlighter ----
 
 UIColorHighlighter.stripingBackground #f2f2f2    javax.swing.plaf.ColorUIResource [UI]
diff --git a/flatlaf-testing/dumps/uidefaults/FlatTestLaf_1.8.0_202.txt b/flatlaf-testing/dumps/uidefaults/FlatTestLaf_1.8.0_202.txt
index a5819331..a5e2ed4c 100644
--- a/flatlaf-testing/dumps/uidefaults/FlatTestLaf_1.8.0_202.txt
+++ b/flatlaf-testing/dumps/uidefaults/FlatTestLaf_1.8.0_202.txt
@@ -1274,6 +1274,16 @@ Tree.wideSelection             true
 TreeUI                         com.formdev.flatlaf.ui.FlatTreeUI
 
 
+#---- TristateCheckBox ----
+
+TristateCheckBox.clearMixed.clientProperty length=2    [Ljava.lang.Object;
+    [0] JButton.selectedState
+    [1] null
+TristateCheckBox.setMixed.clientProperty length=2    [Ljava.lang.Object;
+    [0] JButton.selectedState
+    [1] indeterminate
+
+
 #---- Viewport ----
 
 Viewport.background            #ccffcc    javax.swing.plaf.ColorUIResource [UI]
diff --git a/flatlaf-theme-editor/src/main/resources/com/formdev/flatlaf/themeeditor/FlatLafUIKeys.txt b/flatlaf-theme-editor/src/main/resources/com/formdev/flatlaf/themeeditor/FlatLafUIKeys.txt
index 8016d60d..4c0dc4f6 100644
--- a/flatlaf-theme-editor/src/main/resources/com/formdev/flatlaf/themeeditor/FlatLafUIKeys.txt
+++ b/flatlaf-theme-editor/src/main/resources/com/formdev/flatlaf/themeeditor/FlatLafUIKeys.txt
@@ -928,6 +928,8 @@ Tree.textForeground
 Tree.timeFactor
 Tree.wideSelection
 TreeUI
+TristateCheckBox.clearMixed.clientProperty
+TristateCheckBox.setMixed.clientProperty
 UIColorHighlighter.stripingBackground
 Viewport.background
 Viewport.font