Fellies/config/sidebar_buttons.json

{
	"ftbquests": {
		"quests": true
	},
	"ftbguilibrary": {
		"toggle.gamemode": true,
		"toggle.rain": true,
		"toggle.day": true,
		"toggle.night": true
	},
	"ftbchunks": {
		"chunks": true
	}
}