For example, when you add fuel to Lantern or Miner Hat that is not equipped, there's no sound effect. This is quite different when you add fuel to a Miner Hat that is equipped. The same thing happen on the Magiluminescence etc.
This doesn't affact game experience actually but some people, like me, do really think it not friendly to players. It'll be better if you fix this and add sound effects to "add fuel" actions.
1. Get a Lantern or Miner Hat. 2. Adding fuel to your Lantern, or your Miner Hat that is NOT equipped. You find it missing sound effect. 3. Equip your Miner Hat and add fuel to it. You will hear sound effect.