Hyperion
The SDK's are for people that use scenery design or aircraft design programs to name a few. It gives them the necassary information as to the format needed to make their programs work,
In other words if you wanted to make a weather theme if you look in the weather sdk it will tell you how to go about doing that.
Although some people read them so they can better understand how FS does what it does.
But most of the people who use them are sotware developers. As some of the information in the sdk's are quite techincal.
Hopes this helps I am not a expert on the subject but I use to be a computer programmer.
