So for colors considered for legal purposes: black indicates general information, ie, the contract. Signing in blue seals the contract; also, blue indicates commercial or public agreement. You always sign your deed or will (contracts) in blue. Signing in red, including adding your “DNA” in the form of a red thumb print, indicates private agreement. Purple is a combination which is why Nobility (royalty) sign in purple as they represent both public and private.
In terms of revolutions… they are usually run by psychopaths and I think they often prefer purple, for the reason stated. Power.
On edit. So you go through 12 years of public school, 5 years of undergraduate to get 2 degrees then 3 years of graduate school so you can take a 3 day exam to become registered. To stay alive, you had better study holistic medicine and alternative therapies, then study law. After that, if you want to be free, you have to study Blacks Law Dictionary, 3rd edition, and at least 3 different strategies for establishing your upper case lower case name as the private, living entity and letting it be known that your all caps name is recognized as a legal fiction. (That is where you learn about colors used in legal documents). By this time, you are old and your brain doesn’t work quite as fast as it did at 50 but to win your freedom, you must demonstrate competency.
And my sister didn’t have time last week to talk because she was getting ready for the Army-Navy game party.