Create a Package by right-clicking on the Package (i.e. the top-left) pane of the Package Browser.
Where traditionally Smalltalk had "Categories" in the left-most pane - a agglomeration of related classes - Pharo has "Packages". Packages
A Package is a collection of related classes and
extension methods that may be versioned using the Monticello versioning tool.
By convention, package names and category names are the same. The distinction is only a difference once you use the Monticello versioning tool.
Create a new Package's first class by typing over the pro-forma code in the codepane.
The first line is an instruction to the package to create a class that has the same name as the symbol string used as the keyword argument.
The instance variable names use actual strings.
The category argument comes pre-filled from the create package dialogue.
Right-click on the pane and "accept", or alt-s (which originally stood for 'save' rather than accept)
The Pharo screen has a co-ordinate system with 0,0 as the top-left.
The x-co-ord increases rightwards, and the y co-ord increases as you go downwards.
The bottom-right pane of the object Inspector window is a codepane.
In the protocols pane of the System Browser, protocols are called categories in the drop-down action menu.
You can drag and drop methods to new classes, methods to new protocols