The bisexual flag is a pride flag representing the bisexual community. The first bisexual pride flag was unveiled at BiCafe’s first anniversary party in 1998. The biangles were designed by artist Liz Nani. The design of the biangles began with the pink triangle, a Nazi concentration camp badge that later became a symbol of gay liberation. The blue triangle contrasts the pink and depicts the gender binary. The two triangles overlap and form lavender, which symbolizes, “the queerness of bisexuality”, referencing the Lavender Menace.