Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
At the time of its launch, AMosaic offered several features beyond the capabilities of Mosaic, thanks to the unique capabilities of the AmigaOS and existing support libraries.
The Magic User Interface (MUI) system used to construct the user interface enabled user full user-customization of fonts, colors, and background patterns.
AMosaic makes use of AmigaOS Datatypes for its external and inline image decoding, making it simple for users to extend the list of supported image types by installing the appropriate operating system plugin.
An ARexx inter-application communication interface was built into AMosaic, allowing simple scripting and transferring of data between AMosaic and other software. Using ARexx, users can write external scripts to ask AMosaic to retrieve a page and return it in ASCII format, or AMosaic can execute a script calling an external bookmark tracking program.
AMosaic was featured as the cover story in the March, 1995 issue of Amiga World magazine.
The original developers, Michael Fischer, Michael Meyer, and Michael Witbrock, co-wrote User Extensibility in Amiga Mosaic, which was presented by Michael Witbrock at the Second International World Wide Web Conference in Chicago, Illinois, October 17–20, 1994.
AMosaic 1.1 screenshot