The title goes like "Federation's white yatsu" where "yatsu" is either "thing/object", "him/her/it" depending on the context. The Gundam was referred to as the "White Devil" by Zeon.
The tag on her swimsuit reads "RX-78" referring to the RX-78-2 . The recorder is colored white and pink, suggesting a beam saber. Her uwabaki is white with red sole/trim, reminiscent of the Gundam's feet.
Odd the shield and gun are held by opposite hands though, grandpa Gundam (and many other mobile suits) usually holds the rifle on the right hand, shield on the left.