The hemogender spectrum, also known as the hemospectrum system, is a gender system based on the hemospectrum caste system from the webcomic Homestuck. Each gender is defined by corresponding caste's societal role and/or common traits and themes of the given caste.
These are commonly kingenders, but do not have to be.
The Hemospectrum system was coined by tumblr blog mogai-headcanons (aka neopronouns) in August of 2018.
The flag was made by FANDOM user Literallynotgod with purposefully messy lines representing the tension between the castes. The cancer symbol is placed in the centre of the flag coloured in red to both represent mutantbloods and because the cancer symbol is said to transcend the hemospectrum.