I think that background texture may have been put there with discord or something, and then the bars are charcoal(?) with their alpha turned down so you can see the texture behind... But definitely a custom layout.
Nah, it's a custom bar texture, I think, not transparency. Looks like ag_UF a lot, the "fifth" text could be done with Discord. Or the whole thing could be Discord. Best bet is to ask the author. You could get close to that look with ag_UF and some textures though.