This is essentially a thumbnailed file browser that allows you to make "palettes" of scenes using your existing directory structure. Drag and drop scenes like regular files into your main scene workspace.

Within a palette, subdirectories can be expanded/minimized or flattened. Once a palette is saved, any display settings you adjust for it will be persist when re-opening the editor.

Thumbnail Modes:

• PNG Files: .png files with the same name as the .tscn file will be used as the thumbnail. The PNG files can be in a separate folder from the palette.
• Editor Preview: Use Godot's thumbnail preview system. If the thumbnail is blank, open the scene, center the viewport over the visible nodes and resave it. Whatever is visible in the main workspace will be saved as the thumbnail. You can see the new preview by clicking the palette in the favorites bar to refresh it.
• Instantiation: For small 2D assets such as pixel art, you can instantiate the actual scene as the thumbnail.