All the time I have been testing GNOME Shell, I have noticed that, even when GNOME Shell is running, the GTK+ theme (in my case Ambiance) still shows through the shell whenever I run an application.

What I want to see is one consistent theme throughout the whole GNOME Shell interface, not have one theme for the panels, overview, menus etc. and one totally different contrasting theme for the windows and borders.

I don't know about you, but in my opinion having a nice-looking GNOME Shell theme (with built-in fully customizable RGBA [from Clutter, probably], 3D animations, gradients using the RGBA function and everything else) and then have ugly GTK+ overtones in the Metacity/Mutter windows makes no sense. This being because having contrasting themes ruins the experience.

Here's my plan: You devs out there should consider creating a live.gnome.org wiki page that shows off how you think GNOME Shell should display built-in window decorations. Create a GnomeShell/Design/Whiteboards/MainWindow (or the like) page on live.gnome.org and on that page post a mockup of the main window design that you think would best blend into GNOME Shell. Then, try and implement it in the Shell later on.

I need to see just how you devs think of this plan.