Is there a metacity theme more like elementary's gtk+3 theme for better app integration?
I find that the header bar of non-gtk+3/native apps is rather flat. Semantically, it makes these apps look inactive. Comparatively, native elementary app headerbars fade to a flatter grey when inactive.
My understanding is that it can be difficult to integrate non gtk+3 apps with elementary, as this must be done from the app's source. Alternatively is there a metacity theme more fitting to elementary's other native apps?
An example of flat headerbars