Hello,
It appears that Alteryx does not accept .svg (or other vector image format) for icons (I think to custom macro icons), image in comment, etc...
I think that would be a great idea, especially to manage web integration and support of different resolutions.
here an example of a svg logo I made :

As you can see you can zoom in/out without loose quality.
For reference, here is long blog post about why SVG is great : https://bumpsetcreative.com/10-reasons-the-image-format-svg-is-rocking-the-internet/
To sum it up :
1) SVGs are widely supported2) SVGs are speedy3) SVGs scale perfectly4) SVGs are high resolution5) SVGs can be styled through CSS6) SVGs can be animated7) SVGs can be rearranged easily
😎 SVGs support transparency9) SVGs are great for readability10) SVGs stand out