Set the cursor with id=2 to the 'left_ptr' image from the default theme
$ ./xicursorset 2 left_ptr
+
+
+NOTE: the "redglass" and "whiteglass" cursor themes are sometimes provided in
+a separate package called "xcursor-themes".
+
+Dependencies:
+ - pkg-config
+ - libxcursor-dev
+ - libxi-dev