'Sabine Wren - Action Girl' Explained

As I promised, there are answers on 4 questions about Sabine's advanced armor concept I posted earlier: Sabine Wren - Action Girl.
Thanks for Rebel-Rider and DeviantArtest99 for participation - at least they tried.
And for the rest that'll be just some exploration of not clearly noticeable Star Wars stuff I'm usually dealing with during my preparations.

1. Q: Origins of the new logo on the shoulder plate.
   A: Some conspicuous symbol. It's Mandalorian skull-like logo from the nose art of the Ghost with a Jedi 'wings' around:
   
     
   
   
2. Q: Meaning of the orange symbol on the hip plate.
   A: It's simply 'Warning!' sign. There are some examples from the Rebels: cdnvideo.dolimg.com/cdn_assets…, cdnvideo.dolimg.com/cdn_assets…. But actually this symbol is really ancient:
   
   
   
   
3. Q: Origin of the white pattern on her leg.
   A: This exact pattern is from Sabine's room. But that pattern type is kinda Sabine's favourite and used in many of her symbolic artworks:
   
     
   
   
4. Q: Meaning of yellow symbol on her other leg and what it stands for.
   A: It's Mando'a '5' for Sabine's Ghost team name - Spectre 5: