Pansexual people, much like many bisexual people, are people attracted to people regardless of their gender. The word pansexual comes from the Greek word 'pan-', meaning "all". Originally, “pansexual” was coined by Sigmund Freud, meaning attraction to all ages and species - pedophilia and zoophilia, but luckily the definition has changed since reclaimed after misconception around bisexuality, which isn’t great, but now both labels are there to choose for the person themselves, with pansexuality fitting under the bisexual umbrella.
Pansexuality is one of the many sexualities from the LGBT community. Although the sexuality overlaps with bisexuality, both labels are accepted as long as the person is comfortable and respects the other equally.
As the label was made by Sigmund Freud Pan is a greek prefix meaning "all". However we now are aware being pansexual does not mean you're attracted to anything other than living humans.
Pansexuality is often described as ‘attraction to people regardless of gender (including those who may not identify as boys or girls or as men or women, or to those who are intersex, genderfluid, etc.) pansexuality can also be described as "gender blind".
Some may describe it as "gender blind" because those who identify as pansexual do not consider gender important when they are attracted to others. Pansexuality is considered the opposite of asexuality, as pansexuality means a person may be sexually attracted to anyone regardless of their gender identity, but asexuality means a person is sexually attracted to no one. However, pansexuals are not necessarily sexually attracted to everyone they meet, nor do they necessarily have strong sex drives.
The pansexual colors from the pride flag all have different meanings, pink meaning women, blue, men, and yellow for people (for an example) of a non-binary gender, such as agender, bigender or genderfluid.