GNOME/gimp — reverse-engineered prompt

Build me a desktop image editing program for people who want to open pictures, make changes, and save them again without a complicated setup. I want it to feel like a real image manipulation app, with menus, tools, plug ins or extensions, and room for different themes so the interface can be customized.

It should have sensible default shortcuts, but let people change keybindings later. Please include clear help links or built in documentation so beginners can find tutorials and understand how to use it. Make it stable enough to use as a normal creative tool, not just a demo, and organize the code so contributors can add features and fix bugs over time.

If you need exact desktop app guidance, look up the current GNOME and GTK docs online. Build the first working version with a clean UI, basic image operations, settings, themes, and a clear path for future plug ins.