|What do you thing knowing the programming language will so?|
It is probably written in a high level language like C++, could be Java or some other language. It will be compiled and without the sources code is incomprehensible to anything but a computer.
Having said that, messing with programmes that does things with firmware is really asking for trouble.
If the images are distorted you need to check the configuration for the device especially the resolution and check that the display is also configured to match.