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Everymac isn’t listing the backlight type for any of the 12-inch. I’ve read that for the Pros they’ve moved away from white led at that point but I can’t find any information about the 12”.
DisplayCAL for macOS should advice which one is yours.
Anyway: sRGB-like display = common White LED IPS; P3-like display = WLED PFS for P3 mac. Use those corrections if you have a i1displaypro family colorimeter. If you own a spyder its corrections should have closer names like “standard led” (sRGB) and “whitegamut LED” (p3) although they may be not so accurate for those backlights.
Also take note of macOS limitations regarding profiles and the bugs in macOS color management engine and Apple’s apps that use it. It should be written somewheer in help or faqs: use default settings if you want to get a profile for those apps.
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