Thanks, both for the praises and for reading
Questions are always welcome: we are aware that the project is widr, complex and potentially confusing.
The answer is that the background logo is the theme of the "Seeds Of Deception" saga (that is: the future Decepticon symbol, but currently just the Propaganda Symbol and the Gladiator's face, see the
Jetfire/Grimlock comics).
For the same reason, many characters that will be Decepticon are currently sporting an Autobot symbol: factions do not exist yet (it's the Golden Age, pre-War) and the red symbol is just the one used by military and High Offices.