[fbrzvnrnd]

Originally Posted by what

But when I have an SVG image with paths it always sits at the left edge of the screen. The following image doesn't get centered:

<svg height="100" width="100">
  <circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />
</svg>

Is that because of poor SVG support in Kindle Previewer, or am I doing something wrong?

I think it is correct the image is on the left edge. Try:

<svg width="100%"
            viewBox="0 0 100 100">
            <circle cx="50" cy="50" r="40" stroke="black" stroke-width="3" fill="red" />
        </svg>

to zoom and use all the width.