Task: Demonstrate Linux's Native GUI API (X11/Xlib)

Task: Demonstrate Linux's Native GUI API (X11/Xlib): a task in Terminal-Lego-15k (Harbor dataset). Linux does not have a single "native" GUI API like Windows (Win32) or macOS (Cocoa). Instead, Linux typically uses the X Window System (X11) as its display server protocol, with Xlib being the…