+# + In OS X 10.8 (Mountain Lion) the TERM which can be set in the preferences
+# dialog defaults to xterm-256color. Alternative selections are ansi,
+# dtterm, rxvt, vt52, vt100, vt102, xterm and xterm-16color. However,
+# the menu says "Declare terminal as" without promising to actually emulate
+# the corresponding terminals. Indeed, changing TERM does not affect the
+# emulation itself. This means that
+# + the function-keys do not match for dtterm for kf1-kf4 as well as
+# khome/kend
+# + the color model is the same for each setting of TERM (does not match
+# ansi or dtterm).
+# + the shift/control/meta key modifiers from rxvt and xterm variants are not
+# recognised except for a few special cases, i.e., kRIT5 and kLFT5.
+# + the vt52 emulation does not give a usable shell because screen-clearing
+# does not work as expected.
+# + selecting "xterm" or "xterm-16color" sets TERM to "xterm-256color".