Problems with font and icons in gnome themes

i have installed 14.04 ubuntu with gnome then updated gnome. after installing some themes (flat studio t be specific) the font has this annoying white shadow. also some window shadows are buggy and software centers icons are really strange and out of place. while i am at it does anyone know o a window theme that makes the window bar smaller?

Are you using 'Gnome Tweak Tool' to customize this?