Secret Theme "4"

Stop arguing blue or black, why not both?

This is the final result:

Have you seen there’s some magic about blue and black? I would teach you how to make them!

Step 1: Go to inspect mode, and get into application tab, and you will see this:

Step 2: Click the arrows from Local Storage, then click the plazmaburst2.com thingy.

I know, there's a lot of shit here.

Step 3: Find the Key "THEME", and change the Value to either 4 or negative values:

Last Step: Reload your Level Editor, remember to save before refresh! Tadaa! Your secret Theme is now ready at your service.