Use x-terminal-emulator as the default terminal emulator
--- a/etc/cfg_notioncore.lua
+++ b/etc/cfg_notioncore.lua
@@ -152,7 +152,7 @@
     kpress(META.."F1", "ioncore.exec_on(_, ':man notion')"),
 
     bdoc("Run a terminal emulator."),
-    kpress(ALTMETA.."F2", "mod_query.exec_on_merr(_, XTERM or 'xterm')"),
+    kpress(ALTMETA.."F2", "mod_query.exec_on_merr(_, XTERM or 'x-terminal-emulator')"),
     
     bdoc("Query for command line to execute."),
     kpress(ALTMETA.."F3", "mod_query.query_exec(_)"),
@@ -341,7 +341,7 @@
 -- Main menu
 defmenu("mainmenu", {
     menuentry("Run...",         "mod_query.query_exec(_)"),
-    menuentry("Terminal",       "mod_query.exec_on_merr(_, XTERM or 'xterm')"),
+    menuentry("Terminal",       "mod_query.exec_on_merr(_, XTERM or 'x-terminal-emulator')"),
     menuentry("Lock screen",    
         "notioncore.exec_on(_, notioncore.lookup_script('notion-lock'))"),
     menuentry("Help",           "mod_query.query_man(_)"),
--- a/utils/ion-runinxterm
+++ b/utils/ion-runinxterm
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-test "$XTERMCMD" || XTERMCMD="xterm"
+test "$XTERMCMD" || XTERMCMD="x-terminal-emulator"
 
 title=""
 wait=""