If you happen to be running OLD versions of GIMP on Linux, fantastic, this concept of GIMPBox will make you a happy camper should you want to keep everything in one window.
Sadly for those of us using GIMP 2.6.8+, it’s a fail. Too bad, really. Had this concept worked, it might have been pretty neat for those wanting to keep their Gimp windows together.
Well, this doesn’t mean the project should be written off, rather we ought to keep an eye out to see if the bug is worked out in future releases. After all, the concept is totally sound. Just need to get it working on modern releases of GIMP, that’s all.