Colour the Fortress of Cheese orange (or any other colour resembling orange that wouldn’t make it look like a Devil, Angel or Fred rule)
Add to the text of the next legal proposal:

Add to the text of the next legal proposal:

Add to the text of the next legal proposal:

Upon the passage of this proposal, Devil must whisper to Angel and vice versa.

Create an Angel impulse (which will aply only to voices with Angel allegiances):

Voices may only change the Whispering values of voices with Devil allegiances.

Create a Devil impulse (which will aply only to voices with Devil allegiances):

Each voice may occasionally add a word to the Sandbox in addition to the normal amount of words e may add (in the same manner as e normally would). No voice may finish a sentence in the Sandbox.

Create a Fred impulse (which will aply only to voices with Fred allegiances):

Each voice is a silly fellow.