Dark Fizz
Dark Fizz (Aka. Fizz Extremism) is the extreme, cynical, anti-establishment version of Fizz ideology. Followers of Dark Fizz believe in thing-realism and also typically hold strong anti-establishment and anti-slop views. Unlike Anti-Fizz, Dark Fizz isn't separate to Fizz, it's just more extreme. The relationship between Fizz and Dark Fizz is often compared to the relationship between woke and "dark-woke".
Symbol
Dark Fizz is most commonly represented with the triple integral. This symbol is especially prevalent in the Telefuzz community.
Convexity, who pioneered Fuzz and the Telefuzz label/community has stated that they believe the triple integral symbolizes the 3 axioms on the Torus of Fizzosophy
Secret Fourth Axiom
Some Fizz Extremists recognize a fourth axiom in relation to Dark Fizz. Since the first two axioms are opposites, "We Love Everything" and "We Hate Everything", members of the fizz community occasionally refer to the fourth axiom of "Nothing Matters", being the opposite to "Everything Matters". This concept relating to philosophical schools of thought such as Nihilism and Absurdism, is a fitting descriptor of how many Fizz Extremists pursue their musical goals.
For more information on the fourth axiom, see: Anti-fizz and Fizz Political Compass.