Function roundRect

roundRect(
    gc: RevCachedCanvasRenderingContext2D,
    x: number,
    y: number,
    width: number,
    height: number,
    radius: number,
    fill: boolean,
    stroke?: number | boolean,
): void
A simple implementation of rounding a cell.
Parameters
- gc: RevCachedCanvasRenderingContext2D
- x: number
  the x grid coordinate of my origin
- y: number
  the y grid coordinate of my origin
- width: number
  the width I'm allowed to draw within
- height: number
  the height I'm allowed to draw within
- radius: number
- fill: boolean
- Optionalstroke: number | boolean
Returns void