Lucky we only have to change badges and buttons
There was a time (circa 17th century and later) when the complete wardrobe of uniform (including swords) would change from silver to gold and back again, whenever the Monarch changed - at the expense to the individual, particularly the O's who, in those days, purchased their Commissions
Still got a genuine Crombie Long greatcoat with (gold) annodised Queen's Crown buttons for sale