This might be slightly off-topic, and not all that important, please excuse me.
But I'm wondering, when you're writing software to be used worldwide, and your main focus is not America, but more European countries and countries previously colonized by England, is it better to use American spelling of words (Americanized vs. Americanised, color vs. colour) or English spelling?
Sure most people won't even notice, but I do notice when an English website uses American spelling, even though it's a local (not American) website, and I'm wondering whether other people notice too. Is American spelling by now the accepted standard for a global website, or should I rather spell it the way I expect most of my users to be used to?