As you see in the pucture, what does the (2) bottom settings do : I set them to "low" because I dont know what they do or how they affect the SIM...? 
User Interface
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- Official Post
The last two sliders adjust the contrast and transparency of the overlay. Per default the overlay is not visible but it can be enabled in the settings to gain access to the copilot controls, view menu and other buttons.
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Ah, I C, K, thank you sir
