What do you install an application from Cydia? Where do you install it?

When you install an application, tweak or modification from Cydia get a bunch of lines of code with things that are being installed on your iPhone, but what really is being installed? Where do you install?

With this tutorial you can learn what each application actually installed on your device, and a particular path where you install each of the files. In this way not only you will know how a tweak, but know where to go to m odify each of its parameters or appearance, suppose you want to change a theme of SBSettings, you just have to go to "Content System", note and enter the path to your device via SSH to modify what you want.

However, to know the data you need the application or amendment in question installed, you can not find this information in an application not installed.