I looked at every png of the android.jar and found nothing that fits.
My guess is its build dynamic because it seems to change color depending
on the darkness of the background.. you can see that on the screenshot
i provided.. the text background in the first row is lighter.. in the last row
its black or almost black. So my guess is its somekind of generated by the
system and there isnt any fixed gfx for it.
Actually why does the widget have to look exactly like a normal icon and
almost isnt good enough?