Other GUI Toolkits
The use of improved, third party GUI engines became common amongst users who preferred more attractive interfaces—such as Magic User Interface (MUI), and ReAction. These Object Oriented graphic engines driven by "classes" of graphic objects and functions were then standardized into the Amiga environment and changed Amiga Workbench to a complete and modern guided interface, with new standard gadgets, animated buttons, true 24bit-color icons, increased use of wallpapers for screens and windows, alpha channel, transparencies and shadows as any modern GUI requires.
MUI and similar systems abandoned the separation of the User Interface between the application (which specified gadgets to be displayed) and the Intuition task (which actually managed gadgets for all applications, even when they were busy).
Heirs of Workbench are nowadays: Ambient for MorphOS, Scalos, Workbench for AmigaOS 4 and Wanderer for AROS. There is a brief article on Ambient and descriptions of MUI icons, menus and gadgets here (aps.fr) and images of Zune stay at main AROS site.
A new object-oriented toolkit for all Amiga-like platforms (AmigaOS, MorphOS, AROS), Feelin,was introduced in 2005, and makes extensive use of XML guidelines. It uses its own memory management system, and its memory-pools system shares the embedded OS's semaphores. Feelin also features a non-centralized ID allocation system, a crash-free object invocation mechanism, and an advanced logging system. Details and images on Feelin can be found at its website.
Read more about this topic: Intuition (Amiga)