bottom right, is this a part of Dank or is it another mod and how to I resize or get rid of it?

It's /dank/null. It's not resizable. Remove the mod. (Or politely ask that a config option be added)

oh, ok, just making sure... no need to do anything, I just wasn't sure if it was like theoneprobe or Waila or some overlay mod. Thanks for the quick response :)