I suggest you set your window background to #EAE9E8 or edit this emerald theme.
There are 6 themes in the tar:
-H20.emerald = big buttons with shadows(screenshot 1)
-H20small.emerald = medium buttons with shadows
-H20tiny.emerald = small buttons with shadows (screenshot 3)
-H2n0 shadows.emerald = big buttons without shadows
-H2n0 shadows small.emerald = medium buttons without shadows (screenshot 2)
-H2n0 shadows tiny.emerald = small buttons without shadows
Feel free to edit the theme and upload it, but please link to original.
Comments are welcome.