The main thing to get in a spat when it comes to passports is not their colour or size (though I must say I liked the old blue hardback versions). The size will not change because, quite understandably, most countries adhere to a standard size so that they can be read by machine.
No, the main thing which I will celebrate is the disappearance of the words “European Union” which appears first - before "United Kingdom of Great Britain and Northern Ireland" - from the cover. The EU does not and cannot issue passports. It is not a sovereign nation with that privilege. The embossing of the words “European Union” on member nations’ passports was indicative of only one thing – that wretched organisation’s preposterous ambition to become a single sovereign nation state. There is little more symbolic of an independent nation than its ability to issue its own passports - in the format and colour it chooses. The EU cannot do that (at the moment) so it hijacked everybody else’s.