Node Image Editor UI - WIP

Finally sketching out some app and UI ideas for a potential "image editor" I have been thinking about for quite some time.

Building on interface ideas from Blender (such as fully splitable and switchable panels, node focused) but being more image focused.

Would love to get some feedback both on the design direction and app idea.

Full shot: https://www.dropbox.com/s/rk7bthpwyuizqmu/redink_ui_wip_full.png

Also, thanks for the invite @Mitch Barbour ! :)