I’m not quite sure about the question. I
Do any of these topics affect your usage?
auto-levelling topBottomCorrection
visibility reduction
static vs dynamic stitching
https://github.com/ricohapi/theta-api-specs/blob/main/theta-web-api-v2.1/options/_image_stitching.md
lens distortion parameters
There is an undisclosed lens distortion property.
people have built stitching apps that allow manual calibration each camera lens without having lens distortion property values.
The technique is to align objects such as a tree branch manually at the edges of the spheres. Then, save the lens calibration into a settings file on the stitcher.
The app above is no longer available.