--- a/styles/macosx_yosemite.style	Mon Oct 05 09:21:41 2015 +0200
+++ b/styles/macosx_yosemite.style	Mon Oct 05 10:56:05 2015 +0200
@@ -96,6 +96,30 @@
 ;button.activeBackgroundColor            ((GradientBackground vertical:(Color rgbValue:16rDAEBFB) to:(Color rgbValue:16rC3E0FB)) usedLength:24)
 ;button.activeForegroundColor            (Color black)
 
+arrowButton.upForm                  [ToolbarIconLibrary scrollUpIcon]
+arrowButton.enteredUpForm           [ToolbarIconLibrary scrollUpEnteredIcon]
+arrowButton.activeUpForm            [ToolbarIconLibrary scrollUpActiveIcon]
+arrowButton.disabledUpForm          [ToolbarIconLibrary scrollUpDisabledIcon]
+
+arrowButton.downForm                [ToolbarIconLibrary scrollDownIcon]
+arrowButton.enteredDownForm         [ToolbarIconLibrary scrollDownEnteredIcon]
+arrowButton.activeDownForm          [ToolbarIconLibrary scrollDownActiveIcon]
+arrowButton.disabledDownForm        [ToolbarIconLibrary scrollDownDisabledIcon]
+
+arrowButton.leftForm                [ToolbarIconLibrary scrollLeftIcon]
+arrowButton.enteredLeftForm         [ToolbarIconLibrary scrollLeftEnteredIcon]
+arrowButton.activeLeftForm          [ToolbarIconLibrary scrollLeftActiveIcon]
+arrowButton.disabledLeftForm        [ToolbarIconLibrary scrollLeftDisabledIcon]
+
+arrowButton.rightForm               [ToolbarIconLibrary scrollRightIcon]
+arrowButton.enteredRightForm        [ToolbarIconLibrary scrollRightEnteredIcon]
+arrowButton.activeRightForm         [ToolbarIconLibrary scrollRightActiveIcon]
+arrowButton.disabledRightForm       [ToolbarIconLibrary scrollRightDisabledIcon]
+
+arrowButton.backgroundColor         =scroller.viewBackground
+arrowButton.activeBackgroundColor   =scroller.viewBackground
+arrowButton.enteredBackgroundColor  =scroller.viewBackground
+
 ;
 ;; no: that is really too ugly
 ;; activeHelp.backgroundColor          (Color grey:95)