Unfortunately the way things are now that isn't possible for me to add :(

Because of the way it exports (screenshotting the canvas then downloading the screenshot) that wouldn't be possible unless I make the canvas higher than 1080p, which would make it run really slow in browser. So it's not impossible but I would do it on a secondary or downloadable version if anything.

I actually wanted to use this bubbles originally but when I reached out they declined permission for me to use them.

If I can find someone else willing to contribute more bubble types for the tool I'd be happy to add them but until then it's stuck with just the one :(

Definitely possible but the chances of the imported bubble lining up with the text in the tool are very unlikely unless you edit the uploaded bubble to be a specific size. 

At that point I figure it's easier to edit the text onto the custom bubble manually 😅

I can look into it but I'm not sure how possible it would be or how long I could store that in the browser version without it resetting. I'll see what I can do though!