Ooh, neato – That could work! My one hesitation is overrunning discourses post character limits with complex/larger images (which is why my impulse says try to figure out uploading raw images via file uploader), but I’ll check it out, thanks!
(update!) Results!
That’s precisely how I’m playing it at the moment 
I can also take the base64 data from a canvas, I just want to see if it’s possible to upload on ‘save’ rather than print directly into your editor window. gif screens coming when it’s more refined, swear!
Will do! I’m admittedly a bit of an emberjs and es6 noob here, so any hints as to where to get started for example sets are appreciated, thanks!