Pharo

Pharo is a cross-platform implementation of the classic Smalltalk system that provides the basis for Glamorous Toolkit. Pharo extends Smalltalk-80 in several ways, including support for dynamic arrays, pragmas, traits and slots.

Although GT is built on top of Pharo, it offers a completely new Graphical stack and its own implementations of the development tools to support Moldable Development. As a consequence, directly using the Pharo environment is a very different experience from working with GT. To learn more about the differences, see Glamorous Toolkit and Pharo.

To learn about Pharo within GT, take a look at A tour through Pharo.