Demetersexual and Demeteromantic are an overlap between genderfluid and strayt. A demetersexual person is a genderfluid strayt person who feels dysphoric calling themself strayt when they are exclusively aligned with a binary gender and thus uses this label when not using the label of strayt. They could also dislike ever calling themself strayt/straight due to its gendered connotations.
It can also refer to a genderfluid person who is exclusively attracted to non-binary people.
The flag color meanings are as follows: Dark green represents attraction to non-binary people. Green represents attraction to male-aligned non-binary people and female-aligned non-binary people. Light green represents attraction to unaligned non-binary people. Light grey represents attraction to multi-aligned non-binary people. Grey represents genderfluidity.
The demeteromantic flag has the same meanings, but with different colors.