I'm wondering about the numbers I've circled in red. I don't think they are direct tire temperatures. Are they, perhaps, percentage of optimum tire temps? I'm running at Cleveland on a cold day and the tires aren't warming up, but when I switch from imperial to metric measurements the numbers remain the same. Also, is there an AMS2 wiki? I have more questions.
Those are the tire temperatures in degrees Celsius. The numbers to the inside of them is the brake temperature in degrees Celsius. That widget doesn't respect the global setting to use imperial measurements for temperatures (although, as you probably noticed, it does switch the tire pressure from bar to PSI).