As a Canadian I have a weird mishmash that looks right to me. I'd actually use both center and centre in different contexts. Like, the center of a circle is c

As a Canadian I have a weird mishmash that looks right to me. I'd actually use both center and centre in different contexts. Like, the center of a circle is clearly center, but a rec centre looks better that way! (Notwithstanding the red underline my browser with its own preference is giving me...)