1. No-permission message. Just a new option in config.yml
2. Brigadier commands. Brigadier is Mojang's command framework that allows them to write commands with tab-completions, selectors like @a[name=Iaiao], subcommands, etc. And now SkinOverlays uses this framework. Also, command syntax has changed a bit:
- If you have skinoverlay.wear.others permission:
/wear <targets> <overlay name> OR /wear <targets> url <url>
- If you don't have skinoverlay.wear.others permission:
/wear <overlay name> OR /wear url <url>