It is essentially a group to promote Fatah propaganda to Palestinian girls.
That propaganda includes imagery of rifles and guns.
Here they praise terrorist Dalal Nughrabi for killing 37 Israelis.
And here's another photo they highlight.
Here's a terrible slide-show video they made.
The way we know that Fatah is behind it is the many photos of Mahmoud Abbas intertwined with Arafat. Fatah always tries to associate Abbas, who has no charisma whatsoever, with Arafat, to increase his popularity.