GNOME is the closest thing to that in an open source world, they build on top of one pretty specific vision and have a good set HIGs. And if you don't like it,

GNOME is the closest thing to that in an open source world, they build on top of one pretty specific vision and have a good set HIGs. And if you don't like it, you're wrong. Not because your opinion is not valid, but because that's what you're requesting essentially.