An idea. If JRiver would understand HTML, perhaps JRiver understands inline SVG, just like any web browser.
All we need is IF the bit depth is 24 bit or higher, AND the sample rate is - for example - 48 kHz or higher, THEN output the SVG in an overlay and/or in the title description.
There are many SVG libraries available and perhaps JRiver understands it already, because JRiver can also handle HTML on several places (built-in web browser). I could imagine it's relatively easy to implement this. Would be great to have.