Welcome to the core package. Simulo adds this package to your packages and replaces it every time you change Simulo versions (we check the last_version file), or when the packages directory is created.
All of the built-in Simulo tools are defined here, with the current exception of the Drag Tool. Soon enough, the drag tool will also be made in Lua and defined in core.
You can prevent Simulo from adding/replacing core by setting replace_core to false in your config.toml.
Currently, Simulo has no way to customize the order of tools, they are instead sorted alphabetically by name. For this reason, we name tools like circle "Round Thing" so they show up where we would like them to.
Later on, this will change when Simulo can have a custom tool order.
