Protostrata, Deuterostrata, and Tritostrata flags
Descriptions taken from Pluralpedia (and edited for grammar)
"Protostrata are layers in a system that are almost always 'in focus', or have members in it that are often in front. There can be multiple protostrata per system, think like having multiple hosts."
"Deuterostrata are layers in a system that are 'in focus' less often than protostrata are. This can also be used to describe function layers that work in the background, but are rarely seen in actual 'focus'."
"Tritostrata are layers in a system that are almost never 'in focus'. The people in these layers may rarely (if ever) front, or there could be communication barriers preventing this from happening. Tritostrata can also be used to describe layers full of dormant alters, or even layers where alter form before traveling to new layers."
Versions of the flags without the bevel and drop shadow effects.
In terms of flags design the purple is because for some reason that's the color I associate with system activity. The thinner stripes are for the separation between layers. The top of the protostrata flag being lighter is to represent it "being in the spotlight", and the other two are just based off that. The color of the thin stripes being gold, silver, and bronze is based off of first second and third place metals.
Terms originally from here
