google blogger spelling

it is nice that finally the import of spell check has arrived in the bloggin world. no longer need i cut and past to check was is my disastrous attempt at spelling a word. but why the Americanisms? can we move along, please and at least have the option to spell words that i am sure use an 's' without the 'z'. i want the 'u' in colour.
i don't thinks this is asking to much, lets get it together folks.... options please!