What I find to be interesting is .... are? .... the difference(s) between English/Canadian spelling and American spelling. I had a reviewer take me to task for allegedly misspelling words such as the following examples.

English/Canadian ....................... American
favour .... ....................... favor
flavour ... ....................... flavour
cheque .......................... check (it's in the mail)
etc. etc.

Even the Microsoft "Canadian" spellcheck shows American spelings.

My favourite is

saviour ... ....................... George W. Bush