diff --git a/headers/os/interface/InterfaceDefs.h b/headers/os/interface/InterfaceDefs.h
index 51b5f6f25a..02b9add674 100644
--- a/headers/os/interface/InterfaceDefs.h
+++ b/headers/os/interface/InterfaceDefs.h
@@ -311,6 +311,8 @@ enum color_which {
 	B_LIST_ITEM_TEXT_COLOR = 30,
 	B_LIST_SELECTED_ITEM_TEXT_COLOR = 31,
 
+	B_SCROLL_BAR_THUMB_COLOR = 32,
+
 	B_TOOL_TIP_BACKGROUND_COLOR = 20,
 	B_TOOL_TIP_TEXT_COLOR = 21,
 
diff --git a/headers/private/app/ServerReadOnlyMemory.h b/headers/private/app/ServerReadOnlyMemory.h
index 64b29f2634..46f925ec4e 100644
--- a/headers/private/app/ServerReadOnlyMemory.h
+++ b/headers/private/app/ServerReadOnlyMemory.h
@@ -13,7 +13,7 @@
 #include <InterfaceDefs.h>
 
 
-static const int32 kNumColors = 34;
+static const int32 kNumColors = 35;
 
 struct server_read_only_memory {
 	rgb_color	colors[kNumColors];
@@ -26,10 +26,10 @@ static inline int32
 color_which_to_index(color_which which)
 {
 	// NOTE: this must be kept in sync with InterfaceDefs.h color_which!
-	if (which <= B_LIST_SELECTED_ITEM_TEXT_COLOR)
+	if (which <= B_SCROLL_BAR_THUMB_COLOR)
 		return which - 1;
 	if (which >= B_SUCCESS_COLOR && which <= B_FAILURE_COLOR)
-		return which - B_SUCCESS_COLOR + B_LIST_SELECTED_ITEM_TEXT_COLOR;
+		return which - B_SUCCESS_COLOR + B_SCROLL_BAR_THUMB_COLOR;
 
 	return -1;
 }
@@ -39,11 +39,11 @@ static inline color_which
 index_to_color_which(int32 index)
 {
 	if (index >= 0 && index < kNumColors) {
-		if ((color_which)index < B_LIST_SELECTED_ITEM_TEXT_COLOR)
+		if ((color_which)index < B_SCROLL_BAR_THUMB_COLOR)
 			return (color_which)(index + 1);
 		else {
 			return (color_which)(index + B_SUCCESS_COLOR
-			  - B_LIST_SELECTED_ITEM_TEXT_COLOR);
+			  - B_SCROLL_BAR_THUMB_COLOR);
 		}
 	}
 
diff --git a/src/bin/WindowShade.cpp b/src/bin/WindowShade.cpp
index 7f2f480b27..1d2beface0 100644
--- a/src/bin/WindowShade.cpp
+++ b/src/bin/WindowShade.cpp
@@ -57,6 +57,7 @@ static struct option const kLongOptions[] = {
 	I(list_selected_background_color, B_LIST_SELECTED_BACKGROUND_COLOR),
 	I(list_item_text_color, B_LIST_ITEM_TEXT_COLOR),
 	I(list_selected_item_text_color, B_LIST_SELECTED_ITEM_TEXT_COLOR),
+	I(scroll_bar_thumb_color, B_SCROLL_BAR_THUMB_COLOR),
 	I(tooltip_background_color, B_TOOL_TIP_BACKGROUND_COLOR),
 	I(tooltip_text_color, B_TOOL_TIP_TEXT_COLOR),
 	I(success_color, B_SUCCESS_COLOR),
diff --git a/src/kits/interface/InterfaceDefs.cpp b/src/kits/interface/InterfaceDefs.cpp
index 797a872413..0019676f4a 100644
--- a/src/kits/interface/InterfaceDefs.cpp
+++ b/src/kits/interface/InterfaceDefs.cpp
@@ -101,6 +101,7 @@ static const rgb_color _kDefaultColors[kNumColors] = {
 	{153, 153, 153, 255},	// B_LIST_SELECTED_BACKGROUND_COLOR
 	{0, 0, 0, 255},			// B_LIST_ITEM_TEXT_COLOR
 	{0, 0, 0, 255},			// B_LIST_SELECTED_ITEM_TEXT_COLOR
+	{216, 216, 216, 255},	// B_SCROLL_BAR_THUMB_COLOR
 	// 100...
 	{0, 255, 0, 255},		// B_SUCCESS_COLOR
 	{255, 0, 0, 255},		// B_FAILURE_COLOR
diff --git a/src/kits/interface/ScrollBar.cpp b/src/kits/interface/ScrollBar.cpp
index 1d6fd3988f..faafab4342 100644
--- a/src/kits/interface/ScrollBar.cpp
+++ b/src/kits/interface/ScrollBar.cpp
@@ -965,11 +965,13 @@ BScrollBar::Draw(BRect updateRect)
 			bottomOfThumb, updateRect, normal, flags, fOrientation);
 	}
 
+	rgb_color thumbColor = ui_color(B_SCROLL_BAR_THUMB_COLOR);
+
 	// Draw scroll thumb
 	if (enabled) {
 		// fill the clickable surface of the thumb
 		be_control_look->DrawButtonBackground(this, rect, updateRect,
-			normal, 0, BControlLook::B_ALL_BORDERS, fOrientation);
+			thumbColor, 0, BControlLook::B_ALL_BORDERS, fOrientation);
 		// TODO: Add the other thumb styles - dots and lines
 	} else {
 		if (fMin >= fMax || fProportion >= 1.0 || fProportion < 0.0) {
diff --git a/src/preferences/appearance/ColorSet.cpp b/src/preferences/appearance/ColorSet.cpp
index 819543769d..ab2a167e6e 100644
--- a/src/preferences/appearance/ColorSet.cpp
+++ b/src/preferences/appearance/ColorSet.cpp
@@ -53,6 +53,8 @@ static ColorDescription sColorDescriptionTable[] =
 	{ B_LIST_ITEM_TEXT_COLOR, B_TRANSLATE_MARK("List item text") },
 	{ B_LIST_SELECTED_ITEM_TEXT_COLOR,
 		B_TRANSLATE_MARK("Selected list item text") },
+	{ B_SCROLL_BAR_THUMB_COLOR,
+		B_TRANSLATE_MARK("Scroll bar thumb") },
 	{ B_TOOL_TIP_BACKGROUND_COLOR, B_TRANSLATE_MARK("Tooltip background") },
 	{ B_TOOL_TIP_TEXT_COLOR, B_TRANSLATE_MARK("Tooltip text") },
 	{ B_SUCCESS_COLOR, B_TRANSLATE_MARK("Success") },