The new editor using MGui2 is on progress inside the experimental branch, I had to clean and recode all the editor part, and now the base is working, with a flexible (and extendable) design.

I also corrected some of the engine code and implemented missing features. The editor selection code was reworked using a better raytracing system, it's faster and allows to select objects from front to back (objects inside other objects could not be selected easily).

I added directional lights in the renderer and the editor view, and started implementing the new GUI with a theme/preference system :

There is still a lot of work, and it's hard for me to find free time because of my professional activity, but it's moving !

Apart from that, I would add very subtle dividers in the properties box (bottom left) to separate tools in different groups, but that's a personal choice.

Keep the good job, love that minimal UI.

Another variant :

looks great!
Are there any functional changes? Martis a great engine, but to become popular it lacks the simple things (Navmesh, water, insufficient LUA API) .

Glad you post also 3 top-notch examples of a well designed interface. As you can see, serious software don't have in consideration the color of the UI as a key element of the identity. They think on ergonomie as main priority. The fact that they have the same UI color doesn't make them less 'unique'.

As side note: I was working on a game for long time, the game has some special tones of green and I personally would hate to work on it with a huge blue block in the left side. Anyway, since UI customization is planned to be possible, those details are not so important, just wanted to give my honest opinion.

And here is Unity :

3dsMax :

And Blender :

- the top row buttons, do you mean the pacman, play, pause and stop buttons ?
It's true the size is not coherent and it could be smaller.

I meant to put all buttons (transform tools) in the same row as the pacman, play, etc, maybe with a separation between categories.

About the blue as neutral, well... it's not so neutral as grey.   But since it's planned to be customizable, it's ok. Anyway, you can use the blue as highlights (buttons, hover-active states, etc) so you never loose your identity.

- the top row buttons, do you mean the pacman, play, pause and stop buttons ?
It's true the size is not coherent and it could be smaller.

And is that snapping I see?! (post 6) hehe.

oh and i didnt know there wasn't a console window on other OS, that's good, to me the console always gets in the way, would be nicer if it was integrated somehow

It is also less busy near the scene menu.
What do you think ?