I understood the “priority” affair 
In my case I’m building more levels of badges and when you achieved all badges of a level then badge for the next level is assigned, For example “Getting Started Level” bronze type = “Achieved all Getting Started Level badges”
So, I need to have a “getting started or rock or whatever” under bronze type and other levels over the gold one with the goal of distinguishing priority and colours
Why such level? Because I need a meritocracy system more customizable and granular then TL, with more level and badges to achieve and provide people with new activities to do.
Also, I need to see how many members are on “bronze” level or “silver” level.. etc..
Is it more clear now?