Adapt default theme to take advantage of smoother text shadow

themes/default/bottom-left-active.xpm

themes/default/bottom-left-inactive.xpm

themes/default/bottom-right-active.xpm

themes/default/themerc

themes/default/title-1-active.png

themes/default/title-1-inactive.png

themes/default/title-2-active.png

themes/default/title-2-inactive.png

themes/default/title-3-active.png

themes/default/title-3-inactive.png

themes/default/title-4-active.png

themes/default/title-4-inactive.png

themes/default/title-5-active.png

themes/default/title-5-inactive.png

themes/default/top-left-active.png

themes/default/top-left-active.xpm

themes/default/top-left-inactive.png

themes/default/top-left-inactive.xpm

themes/default/top-right-active.png

themes/default/top-right-active.xpm