diff --git a/dnSpy/dnSpy/Themes/ColorInfos.cs b/dnSpy/dnSpy/Themes/ColorInfos.cs
index 5182b678d8..4f28bc7fe3 100644
--- a/dnSpy/dnSpy/Themes/ColorInfos.cs
+++ b/dnSpy/dnSpy/Themes/ColorInfos.cs
@@ -1775,10 +1775,6 @@ static class ColorInfos {
 				DefaultForeground = "#FF444444",
 				ForegroundResourceKey = "EnvironmentToolWindowTabText",
 			},
-			new BrushColorInfo(ColorType.SearchBoxWatermark, "SearchBox Watermark") {
-				DefaultForeground = "#FF6D6D6D",
-				ForegroundResourceKey = "SearchBoxWatermarkForeground",
-			},
 			new BrushColorInfo(ColorType.MemoryWindowDisabled, "Memory Window Disabled") {
 				DefaultBackground = "#40000000",
 				BackgroundResourceKey = "MemoryWindowDisabled",
diff --git a/dnSpy/dnSpy/Themes/blue.dntheme b/dnSpy/dnSpy/Themes/blue.dntheme
index f3c9f507e4..cebd2781bf 100644
--- a/dnSpy/dnSpy/Themes/blue.dntheme
+++ b/dnSpy/dnSpy/Themes/blue.dntheme
@@ -725,7 +725,6 @@
 		<color name="environmenttoolwindowtabselectedtab" bg="#FFFFFFFF" />
 		<color name="environmenttoolwindowtabselectedtext" fg="#FF000000" />
 		<color name="environmenttoolwindowtabtext" fg="#FFFFFFFF" />
-		<color name="searchboxwatermark" fg="#FF6D6D6D" />
 		<color name="memorywindowdisabled" bg="#40000000" />
 		<color name="treeviewnode" fg="#FF000000" />
 		<color name="environmentdropdownglyph" bg="#FF1B293E" />
diff --git a/dnSpy/dnSpy/Themes/dark.dntheme b/dnSpy/dnSpy/Themes/dark.dntheme
index 8a6f724791..5737b9d8d3 100644
--- a/dnSpy/dnSpy/Themes/dark.dntheme
+++ b/dnSpy/dnSpy/Themes/dark.dntheme
@@ -725,7 +725,6 @@
 		<color name="environmenttoolwindowtabselectedtab" bg="#FF252526" />
 		<color name="environmenttoolwindowtabselectedtext" fg="#FF0097FB" />
 		<color name="environmenttoolwindowtabtext" fg="#FFD0D0D0" />
-		<color name="searchboxwatermark" fg="#FFA0A0A0" />
 		<color name="memorywindowdisabled" bg="#40FFFFFF" />
 		<color name="treeviewnode" fg="#F1F1F1" />
 		<color name="environmentdropdownglyph" bg="#FF999999" />
diff --git a/dnSpy/dnSpy/Themes/hc.dntheme b/dnSpy/dnSpy/Themes/hc.dntheme
index 2d0621780f..b8a6bce6fc 100644
--- a/dnSpy/dnSpy/Themes/hc.dntheme
+++ b/dnSpy/dnSpy/Themes/hc.dntheme
@@ -539,7 +539,6 @@
 		<color name="environmenttoolwindowtabselectedtab" bg="#FF000000" />
 		<color name="environmenttoolwindowtabselectedtext" fg="#FFFFFFFF" />
 		<color name="environmenttoolwindowtabtext" fg="#FFFFFFFF" />
-		<color name="searchboxwatermark" fg="#FF00FF00" />
 		<color name="memorywindowdisabled" bg="#40FFFFFF" />
 		<color name="treeviewnode" fg="#FFFFFFFF" />
 		<color name="environmentdropdownglyph" bg="#FFFFFFFF" />