Function createBlankSvgImageDataUri

createBlankSvgImageDataUri(
    width: number,
    height: number,
    fillColor: string,
): string
Returns an blank SVG image with the specified dimensions and background color. The image result is returned as a base64 data URI
Parameters
- width: number
  The width of the image in pixels
- height: number
  The height of the image in pixels
- fillColor: string
  The fillColor. A hex-string or the keyword 'none' for a transparent picture
Returns string