/indra/newview/skins/default/xui/en/widgets/scroll_bar.xml

 1<?xml version="1.0" encoding="utf-8" standalone="yes" ?>
 2<scroll_bar thumb_image_vertical ="ScrollThumb_Vert"
 3			thumb_image_horizontal ="ScrollThumb_Horiz"
 4            track_image_vertical ="ScrollTrack_Vert"
 5			track_image_horizontal ="ScrollTrack_Horiz"
 6			track_color="ScrollbarTrackColor"
 7            thumb_color="ScrollbarThumbColor"
 8            thickness="15"
 9            tab_stop="false">
10  <up_button name="up_button"
11             image_unselected="ScrollArrow_Up"
12             image_selected="ScrollArrow_Up"
13             scale_image="true"
14             hover_glow_amount="0.35"/>
15  <down_button name="down_button"
16               image_unselected="ScrollArrow_Down"
17               image_selected="ScrollArrow_Down"
18               scale_image="true"
19               hover_glow_amount="0.35"/>
20  <left_button name="left_button" 
21               image_unselected="ScrollArrow_Left"
22               image_selected="ScrollArrow_Left"
23               scale_image="true"
24               hover_glow_amount="0.35"/>
25  <right_button name="right_button"
26                image_unselected="ScrollArrow_Right"
27                image_selected="ScrollArrow_Right"
28                scale_image="true"
29                hover_glow_amount="0.35"/>
30</scroll_bar>