Thank you so much for doing this tutorial. As someone new to Spine, (i usually use Adobe Animate or After Effects) It was a great way to get a little more familiar with the interface, workflow, and concepts. Very appreciated and very well documented. Providing the 3 versions of samples to dissect, also really helped to see where i went wrong when following the written instruction. I hope you do more in the future.
Anyway, i decided to take mine in a slightly different direction and played with the opacities and made your shine into a glow inside the orb. I work in games and i can definitely apply these techniques for selectable objects and more.