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Last updated at 10:32 pm UTC on 23 August 2017
Morphic is a direct-manipulation User Interface (UI) construction kit based on display trees. It works with graphical objects called Morphs. It replaces the original Model View Controller graphics toolkit of Smalltalk-80.

Where does Morphic stand out?

Morphic documentation

How Morphic works internally

In a Morphic project the desktop is a graphical object which is accessible through a global variable called 'World'.
The UI process repeatedly calls World doOneCycle. It uses the ActiveHand (instance of HandMorph).
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The user/programmer does NOT have to work with any of these methods directly.