Maybe this is a regional thing, but I never noticed this until a couple of years ago. . so I suspect it’s just an internet thing.
It’s whine– or it was when I learned to spell. Whinge looks like you mixed up ‘wince’ and ‘cringe’, or maybe it’s just a hipster-vogue spelling.
Webster’s online says it’s a British informal spelling, but my Oxford dictionary doesn’t list it. I think I’ll let it pass, if you’re a Brit.
If not, please be content using colour and leave this one alone.