Made a new "src" folder that will contain the source code files, like all the GDScript and scene files. Please read this for more details: https://www.gdquest.com/docs/guidelines/best-practices/godot-gdscript/
It made no sense to keep scenes separate from their scripts. More file organizing will follow soon.
The bucket tool can now use Patterns instead of colors to fill areas. They get loaded from the "Patterns" folder, similar to how Brushes and Palletes work. You can no longer use brushes for the bucket tool.