FizzBuzz breakdown

This sample prints the first 30 cases of FizzBuzz: for each number in range, the output is:

• Fizz if it is divisible by 3;
• Buzz if it is divisible by 5;
• FizzBuzz if it is divisible by both 3 and 5;
• the number itself otherwise.

The final source was automatically generated via the recolorize, colorswap and compact commands. (?)
This is what it would look like without the first two commands:

Still a bit of a mess, right? Let's also run decompact:

Step-by-step explanation: