: "Roundness" isn't really much to connect the Jjaro logo with
: Durandal's (Marathon) logo. There's an obvious relation between the Thoth
: and Jjaro logos, and I wouldn't be surprised if out-of-universe the Jjaro
: logo was derived from Thoth's logo (just rounder and less square), but
: in-universe Thoth is a creation of a creation (the S'pht'Kr) of a Jjaro
: (Yrro), so the connection between them seems perfectly explicable in that
: direction.
It's not just roundness; it's also got the smaller circle enclosed within it. Particularly the lower-left part of the infinity logo is almost exactly the same as Durandal's logo, just with the center square thing interrupting where the vertical line would be.