0: Adding new skull textures

All Skull Textures must be taken from https://minecraft-heads.com/

When you have the Skull you want, scroll to the 'Other' section and copy the Minecraft-URL hash

Navigate to the Skins.java enum in your IDE

Find the Food region

At the end of the region, add a new enum value, name it to match the head selected and copy in the has to the constructor argument.

Above this new value, paste the URL of the head from the website.

If this the final record in the enum, you will need to add a semi-colon at the end, if there isn't one already and replace the semi colon from the previous value with a comma.

Your final entry should end up looking like the following: