add support for ratio

[Evanion]

This is a great component, solve my issue beautifully!

I'm using it to laod icons form the uikit library, and they use the ratio attribute on their svgs to size the icon.

default:

<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" ratio="1">
  <polyline fill="none" stroke="#000" stroke-width="1.1" points="4,10 8,15 17,4"></polyline>
</svg>

ratio 2:

<svg xmlns="http://www.w3.org/2000/svg" width="40" height="40" viewBox="0 0 20 20" ratio="2">
  <polyline fill="none" stroke="#000" stroke-width="1.1" points="4,10 8,15 17,4"></polyline>
</svg>

As you can se the ratio also multiplies the width and height attributes with the ratio.
Would it be possible to add this to your API?

[gilbarbara]

Not really since ratio isn't part of the SVG specification.

[s]