I would simply call that agreement. Conspiracy and agreement carry HIGHLY different connotations. And sure, for a few decades, red meant Commie. But that was then, and 14 years is a very long time in the public consciousness.
so crazy conspiracy
As you said in comment 25
In addition, it was you that also stated:
So, no, blue wasn't ever the officially recognized GOP color.
And were we to follow along with what you said in comment 51:
many of a them reversed the pattern to avoid favoritism.
That begs the question why werent they reversed BACK during the The next election cycle?