XIconSize(3) on Linux
The text d921ceb17e1a, as Debian 12 (Bookworm) shipped it.
allocate icon size structure and set or read a window's WM_ICON_SIZES property
The text d921ceb17e1a, as Debian 12 (Bookworm) shipped it.
allocate icon size structure and set or read a window's WM_ICON_SIZES property