ApplyTo

Description: The applyTo option property applies its value to the <identifier>.

Edit
ctr('.test', {
width: 200px
first-child: {
option: {
applyTo: '.applyTo'
}
font-size: 20px
}
})
.test:
width: 200px
first-child:
option:
applyTo: .applyTo
font-size: 20px
.test {
width: 200px;
}
.test:first-child .applyTo {
font-size: 20px;
}
ctr('.test', {
  width: 200px
  first-child: {
    option: {
      applyTo: '.applyTo'
    }
    font-size: 20px
  }
})
.test {
  width: 200px;
}
.test:first-child .applyTo {
  font-size: 20px;
}
.test:
  width: 200px
  first-child:
    option:
      applyTo: .applyTo
    font-size: 20px

Notes

AppendTo

Description: The appendTo option property appends its value to the <identifier>.

Edit
ctr('.test', {
width: 200px
first-child: {
option: {
appendTo: '.appendTo'
}
font-size: 20px
}
})
.test:
width: 200px
first-child:
option:
appendTo: .appendTo
font-size: 20px
.test {
width: 200px;
}
.test:first-child.appendTo {
font-size: 20px;
}
ctr('.test', {
  width: 200px
  first-child: {
    option: {
      appendTo: '.appendTo'
    }
    font-size: 20px
  }
})
.test {
  width: 200px;
}
.test:first-child.appendTo {
  font-size: 20px;
}
.test:
  width: 200px
  first-child:
    option:
      appendTo: .appendTo
    font-size: 20px

Notes

Override

Description: The override option property overrides the entirety of the selector, including the <identifier>, with its value.

Edit
ctr('.test', {
width: 200px
first-child: {
option: {
override: '#override'
}
font-size: 20px
}
})
.test:
width: 200px
first-child:
option:
override: '#override'
font-size: 20px
.test {
width: 200px;
}
#override {
font-size: 20px;
}
ctr('.test', {
  width: 200px
  first-child: {
    option: {
      override: '#override'
    }
    font-size: 20px
  }
})
.test {
  width: 200px;
}
#override {
  font-size: 20px;
}
.test:
  width: 200px
  first-child:
    option:
      override: '#override'
    font-size: 20px

Notes