NETWMICON
NETWMICON is a standard for window management in the X Window System, which is a widely-used windowing system for Unix-like operating systems. It is part of the Extended Window Manager Hints (EWMH) specification, which provides a set of conventions for how X applications and window managers should interact. The primary purpose of NETWMICON is to define a protocol for window managers to communicate with applications regarding the icons used to represent windows.
The standard specifies how applications should provide icons for their windows, including different sizes and formats.
NETWMICON also includes guidelines for how window managers should handle icon changes. For example, if an application
The standard is designed to be flexible and extensible, allowing for future enhancements and compatibility with