Custom skin help [MAC]

So I was poking around for jinx skins because I really like her and there seems to be no support for mac. Like are we mac users just dead to everyone? Anyway, I poked around on how to do it had no luck but I think I have an Idea on how to do it? One big argument was "I cannot find the DATA folder that leads to CHARACTER folder" so I took the liberty to at least tell where it is.

On mac right click League launcher on desktop or where ever you put it Press show content. Select content -> LoL -> RADS -> Projects -> lol_game_client -> filearchives

At this point you get a bunch of numbers. These have the characters in them. The question is which one do you put your skin into? The more I looked around it seems that some of them are skins and some of them are the characters spells in a different folder. So maybe now we have to seperate and put them inside? A little help guys thanks. I just want my jinx to look pretty is all xD.