Update theme.md

diff --git a/theme.md b/theme.md
index c4cb0feee147d9c7cd5dab8ca4dae53c29eed725..516cd319e723726c87999d4c6b64ff0e7fc7d5d4 100644 (file)
--- a/theme.md
+++ b/theme.md
@@ -103,8 +103,7 @@ There are 16 basic colors:
   * white
 
 These colors will be enough for almost terminals.
-
-But if your terminals can support 256 colors (check your `$XTERM` variable!), 
+But if your terminals can support 256 colors (check your `$TERM` variable!), 
 you can even use `term_0` to `term_255` as sample above.
 
 Color reference can be found at