gui: make scroll bars smaller and transparent

Not all themes tested.

To center the scrollbar horizontally on the line, the width must be
fastscroll_linew + 2 * something.

Change-Id: I3c2878734ffbd2e8ef3bc7c64b2f16d4f61aeda5
diff --git a/gui/devices/800x1280/res/ui.xml b/gui/devices/800x1280/res/ui.xml
index 44fb4e7..fc9da12 100644
--- a/gui/devices/800x1280/res/ui.xml
+++ b/gui/devices/800x1280/res/ui.xml
@@ -145,12 +145,12 @@
 		<variable name="fileselector_highlight_color" value="#505050" />
 		<variable name="fileselector_highlight_font_color" value="#33B5E5" />
 		<variable name="fileselector_spacing" value="36"/>
-		<variable name="fastscroll_linecolor" value="#808080" />
-		<variable name="fastscroll_rectcolor" value="#808080" />
+		<variable name="fastscroll_linecolor" value="#50505080" />
+		<variable name="fastscroll_rectcolor" value="#33B5E580" />
 		<variable name="fastscroll_w" value="60" />
 		<variable name="fastscroll_linew" value="2" />
-		<variable name="fastscroll_rectw" value="40" />
-		<variable name="fastscroll_recth" value="70" />
+		<variable name="fastscroll_rectw" value="16" />
+		<variable name="fastscroll_recth" value="40" />
 		<variable name="listbox_x" value="5" />
 		<variable name="listbox_width" value="790" />
 		<variable name="listbox_tz_height" value="580" />