Leggero has a minor “bug” in its CSS because body background was supposed to be white as a default for all the browsers while actually it’s not :)
open fp-interface/themes/leggero/res/common.css
in body{} section change the line with “background” (should be 28) to:
background: white url(../imgs/backshade.png) repeat-x;
you just have to add “white”
soWWy for the inconvenient; package updated as well
bye