* polling system code done
* select service done
* select system fixes. works fine now
* clean up select sys by idx
* reading, saving, loading done. render wrong
* render first layer works
* render fixed
* fix Lite Render triage
* regression Lite rendering
* sync API with 1.40 release
* clean up and lint
---------
Co-authored-by: hedger <hedger@users.noreply.github.com>
6c83a67173