In a message to my fellow Revolutionaries I italicized the following:

"Remember, every time you use this trilobed emblem, in either version, you are also re-expressing your own sympathy for the message the image encodes. And you express that sympathy with a shape as simple as a curved line."

How different the meaning becomes when you consider the existence of basic steganography!

(I didn't quite follow the advice given in the task description when making my code, as hiding a message in the image in question and extracting it therefrom both require a computer - but when you consider those words as establishing a meaning for a specific coded symbol, a meaning that is not accessible without this link, which serves as the key, spreading the coded symbol can be done with no tools beyond chalk. My only regret is that the emblem didn't gain much prominence.)