A gfx tool, short for graphics tool, is a software application designed to create, edit, or manipulate graphics, such as images, videos, or 3D models. Gfx tools can range from simple, user-friendly applications for basic image editing to complex, professional-grade software for advanced graphics creation and manipulation.

Qasim786 is a well-known developer in the tech community, and his gfx (graphics) tool is likely a project he's worked on. Without more context, I'll provide a general overview of what a gfx tool is and what it might entail.

AROS - a solid foundation

AROS is a complete NG OS based on AmigaOS 3.1 API. This means it includes many known components like datatypes (24bit), network stack, AHI, MUI-Implementation (Zune), USB-support, Themeing, window out of screen and RTG. The default desktop (Wanderer) is functional similar to old 3.1 workbench.

Additions

Addition there are Scalos and Magellan desktops. Both are highly configurable what I made extensive use of. Also Aros Vision is extended with additional commodities in WBStartup, handler and devices, libraries, commands in C and lots of software including many applictations, guis, games, demos.

Useable on both WinUAE and Apollo V4