--- a/Flags.wiki	Mon Dec 08 15:18:26 2014 +0000
+++ b/Flags.wiki	Mon Dec 08 15:22:07 2014 +0000
@@ -18,5 +18,9 @@
  * Community flags: The flags whose file name starts with “`cm_`” are listed as “community flags” in Hedgewars (the prefix is removed)
  * National flags: All other flags
 
+Please note that the flags “`hedgewars.png`”, “`cpu.png`”, “`cpu_plain.png`”, a couple of community flags and national flags come pre-installed with Hedgewars. If you use a flag of an identical name in your Hedgewars user data directory, Hedgewars will show that one instead of the system-wide installed flag. That way, you can customize the default flag, for example.
+
 == Limits ==
-Please note that flags are _not_ automatically shared when you play online. Unless the other players have your flag, too, they will only see the default flag for your team instead. The only flags you can be sure are also seen online are the ones supplied by the Hedgewars installation.
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+Please note that flags are _not_ automatically shared when you play online. Unless the other players have your flag, too, they will only see the default flag for your team instead. The only flags you can be sure are also seen online are the ones supplied by the Hedgewars installation.
+
+If you have changed or overwritten any of the pre-installed maps, this change is also only visible on your Hedgewars installation. The change won’t be visible for other players over the net.
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