Heya !

I'm a libgdx developer, and I'm trying to create a level editor using libgdx.
How would someone go making an editor like spine ? I mean, the custom GUI and scene2d stuffs.

The look and feel of Spine editor is totally different from any usual java Swing/libgdx application.

What are the ins and outs of making an editor such as Spine with custom window layout, custom scene2d (and other things I'm certainly missing) ?

Thank you if you can help me out

Edit :

Here's a mockup of what we'd like to achieve
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