The use of colored icons in the game itself and the online manual using specific colors may cause issues for those with color blindness though. (dagersystem.com)
Once you've set all your preferences, you'll know the controls are active when you see the four - colored icon appear in the bottom right of the screen. (laptopmag.com)
There are some required touch options such as when you access a console another screen pops up where you have to guide colored icons into the right spot with your finger to unlock doors. (darkstation.com)