- Both genders could increase and decrease in intensity at the same time.
- As one gender becomes more intense the other gender becomes less intense.
- The two genders fluctuate at random, unrelated to each other.
- They could be fluid between two genders and also have those genders fluctuate in intensity (fluidflux).
The bigenderflux flag was created by Tumblr user beau-is-gai on or before January 13, 2018.
The alternate flag was created by Reddit user VoxelDraqon on October 19, 2020. The yellow stripes represent one gender and a partial version of that gender, the green stripes represent the other gender and a partial version of that gender, and the black stripe represents agender.