speedy-ben-skins/Skins/main nm skin/mania

This folder contains various assets for mania. You probably shouldn't touch
anything here unless you know what you're doing.

If you want to customize the mania skin, check out the alternative ini files
under customize/mania-ini instead, or edit the skin.ini file directly.

If you're not familiar with this process at all, I recommend taking a look at
https://osu.ppy.sh/wiki/en/Skinning/skin.ini#[mania]