How to use Minecraft What's with the darkness? skin ?

Learn how to download and apply the What's with the darkness? skin for Minecraft on PC (Java Edition) or Pocket Edition (PE).
PC (Java Edition):

1. Go to the Minecraft website and login to your account.
2. Click the “Minecraft Java Edition” dropdown menu and select “change skin”.
3. On the next page, click “select file” and upload the What's with the darkness? skin file.

1. Open the game app and press the “dressing room” button on the main menu screen.
2. Press “Edit Character” -> “owned skins” -> “choose new skin” and upload the What's with the darkness? skin file.

Does this skin have thick or skinny arms?

This particular What's with the darkness? skin has thick (4px) arms. It is based on the classic Steve model.

What color is this What's with the darkness? skin skin?

This particular Minecraft What's with the darkness? skin has the following color palette:
White
Strikemaster
Black
Scorpion