Meaning of flag: The pink band stands for women, the blue band stands for men, and the yellow band stands for those with a gender outside of male and female. The yellow rose is there because it is commonly associated with friendship.
Panplatonic refers to someone who regularly feels platonic attraction towards people regardless of gender. It is the platonic equivalent of pansexual.
Panplatonic does not refer to someone who simply "has friends of multiple genders" or "is capable of being friends with people of any gender", rather it describes someone who regularly experiences squishes or "friend crushes" or otherwise feels a strong desire to be friends with someone in particular.
Someone in a platonic relationship with someone is in a deep relationship with someone that goes beyond casual friendship. One may feel the desire to cuddle or hug with said person but don't feel the desire to have a romantic or sexual relationship with the person. As stated earlier, being in a platonic relationship with someone is NOT being friends.
Info taken from: https://lgbta.wikia.org/wiki/Panplatonic and with the help of my friend HappieDucks
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