Can't use chartjs options

[daddyodevil]

I am trying to use a doughnut, and I need to -

1. Increase the size of the inner white circle, like using cutoutPercentage in chartjs
2. How do I specify the exact size of the chart ?
3. How do I write a text/label inside the doughnut empty space ?
4. From what it seems to me, without looking at the code, that, for each arc/portion of the chart, the line marking to the label is starting from the middle of the circumference portion of the said arc, and going direct outwards as if starting from the center of the circle, what if I wanted the line to start at the center of the arc, but be parallel to the x-axis, or the base of the screen/web-page ?