Straightflux or Heteroflux feeling attraction to the opposite gender (straight), and having that attraction fluctuate in intensity (aceflux). For example, one day they may feel asexual, while the next day they may feel greyace-straight.
History
Straightflux was coined by Tumblr user beyond-mogai-pride-flags on November 2nd of 2018.
Flag
The flag was coined by Tumblr user beyond-mogai-pride-flags on November 2nd of 2018. It has no confirmed meaning.
Resources
https://beyond-mogai-pride-flags.tumblr.com/post/174803380810/straightflux-pride-flag