File extension for themix color palettes

[actionless]

i am thinking about extensions .tmx or .themix

first one is already used (https://fileinfo.com/extension/tmx) as Translation Memory eXchange (TMX) so i think more about about the second, but please also submit your opinions here

[nana-4]

I'd vote for .themix regardless of whether .tmx is already used.

.themix is very obvious and predictable that it's a Themix specific file. Three-letter extension name can appear to be executable in various apps.