* Resets animation parameters and camera settings to initial/default values
* Considered as activity: mouse press events
* Inactivity timeout: 10 minutes
* Currently only enabled in demo mode

* JPG version fails to load on some Macs and on Windoze (static build)
* TODO: try alternatives to reduce the PNG size or fix the root cause

* Using show event to update pulse profile
* Using 60 deg inclination of magentic axis

* Reduces perspective effects (e.g. on pulse amplitude)
* Also: added upper zoom boundary and improved lower bound

* Quadratic shape
* Dimensions a power of 2
* Maximum size (automatic scaling if exceeded)
* Also: removed simple background

* Using rotation angle directly (instead of independent stepping)
* One signal/slot link for position update and reset
* Also: added pulse profile update (reset) to stop animation slot

* Flipped rotation direction
* Added missing rotation angle capping (0-359 deg)
* Removed superfluous "mouse sensitivity" factor
* Removed superfluous camera update

* Use double precision
* No explicit float literals