What does tinted moisturizer do? Does it over up scars?

Coincidentally, I use the exact same tinted moisturizer in the picture that you linked except I am in Fair to Light. A tinted moisturizer suppose to even out your skin tone and give you a minimum to medium coverage depend on how bad you skin is, but definitely not maximum as you address that. Unfortunately, the Aveeno Positively Radiant Tinted Moisturizer SPF 30 only comes with two shades. But you can mix the two shades together to find your perfect shade. It cover up scars and blemishes pretty well, for me it cover ups about 70% of it. Although, I do set it with the Maybelline Pure Stay Powder Foundation SPF 15 in 20 Buff. Depend on which tinted moisturizer you buys the shades varies, unlike Aveeno the Neutrogena Healthy Skin Enhancer(tinted moisturizer) comes with 6 different shades and the Covergirl Smoothers SPF 15 Tinted Moisturizer comes with 4 shades. So as you can tell some comes with more than others, but not enough till everybody can find their exact shades. If you have a really deep skin tone a tinted moisturizer won't be the best choice, I would say that if you have pale to medium complexion a tinted moisturizer might be one of your choices. The 3 famous drugstores ones that I have heard and hear many good things about is the Neutrogena, Aveeno and Covergirl tinted moisturizers. Although, I would have to say that some people says that the Covergirl tinted moisturizer doesn't give them any coverage, so I would say that the Covergirl should be your last choice out of these 3. But there are some people that are swear by it.