The point of an annotation that sits on its coordinates. { x: '50%', y: '50%' } is the centre, and { x: '50%', y: 12 } is 12 points down from the middle of its top edge
{ x: '50%', y: '50%' }
{ x: '50%', y: 12 }
The point of an annotation that sits on its coordinates.
{ x: '50%', y: '50%' }is the centre, and{ x: '50%', y: 12 }is 12 points down from the middle of its top edge