How to set initial value for SignaturePad and / or access the context?

[dannextlogic]

Hi and thanks for your work! 👍

I'm working on implementing the signature pad in a React form and it looks like items will have to be edited later or state has to persist over page refresh, which makes it that I need to be able to set the initial value of the signature pad somehow.

I'm saving the signature as SVG DataURL

onDrawEnd={details => details.getDataUrl('image/svg+xml').then(url => setSignature( url ))}

On page refresh, I'm using a DOMParser to extract the paths from the saved dataUrl value, but I don't know where to add them to the context or initial value of the SignaturePad.

Can anyone please help?