Here is a flag for the sexual orientation of "pansexualism." I don't really know what pansexualism is. Elias Granqvist, 9 December 2012
According to the Oxford Online Dictionary, here's the definition of "pansexual": adjective
not limited or inhibited in sexual choice with regard to gender or activity. noun
a pansexual person.
Pansexuality, or omnisexuality, is sexual attraction, sexual desire, romantic love, or emotional attraction toward persons of all gender identities and biological sexes.
Etymology of the word:
The prefix pan- comes from an Ancient Greek term meaning "all" or "every." Omni- comes from a Latin term meaning "all." "Pansexual" is derived from the word "pansexualism," dated back to 1917, which is the view "that the sex instinct plays the primary part in all human activity, mental and physical." Credited to Sigmund Freud, it is a term of reproach leveled at early psychology, and is also defined as "the pervasion of all conduct and experience with sexual emotions."
Esteban Rivera, 9 December 2012
I think it is not just another term for bisexual, someone who is attracted to other people regardless of their gender or sexual orientation, but refers to somebody who is open to a much wider variety of sexual activities than normal, and not just with male and female. Pete Loeser, 9 December 2012
It most certainly well isn't. A bisexual is potentialy attracted to both genders; a pansexual is potentialy attracted to anyone regardless of gender or gender identity (thus including transgender, genderqueer, hermaphrodite, transvestite and androgynous). Marc Pasquin, 10 December 2012
Pansexuality, also called omnisexuality, means the sexual, romantic or emotional attraction towards people of any sex or gender identity ("gender-blind" sexuality) . The flag representing it  is a pink-yellow-blue tricolor, which is supposed to represent all genders: pink color stands for females, blue for males, and yellow for non-binary (e.g. androgynous, agender, bigender, genderfluid, transgender, intersex) people. The color shades are deep pink (much like the "hot pink" form Gilbert Baker's flag, or even deeper), light blue (close to FOTW color B--, just a bit darker), and yellow is usually darker than FOTW color Y, but still visibly lighter than Y+. The ratio generally varies between 2:3 and 3:5, but the latter seems to clearly prevail. The flag design was present online since the early 2010s, but seems to came into the real-life use only in later part of the decade. A list of examples for its use follows: