I'm glad to announce you my first plugin for Krpano, the circle hotspots plugin, one of the most elegant & minimalist ways to add hotspot links to scenes to a tour in 360 ambient while preserving a thumbnail and scene description.
This is an idea that has lived with virtual tours at Imagen360.com for some years to date and, as it recently got some popularity and I was asked for it's use on other developers, in the end I decided to give it away open source to the community as some contribution for all I've learned all this years from it.
Since the beginning I've always loved this idea as I never liked arrows at all and other solutions to add thumbnails were a bit too distractive for my taste, we're doing mostly visual photographic experiences so IMO the less distractions in the image the better.
Feel free to use it, modify it and adapt it to your projects, this is now in a very basic format for Krpano default skin but code is there so you can adapt it to your own needs.
And last bye not least, if you feel like this one adds something to your product consider making a donation for the effort and support that's behind.