We have an in-house XML driven formatting engine to generate PDF reports at the company I work for (we're in England).<p>The style attribute names have been written in British English - e.g. the colour attribute is colour and not color as it would be in CSS.<p>Despite being British this drives me crazy! I use the US English spelling all the time (I've been used to it in CSS for 10+ years!) and then wonder why things arn't working.<p>So, +1 to no en-us to en-gb localisation. This Brit will take consistency any day :-)